How many questions from Organic Compounds Containing Halogens appear in JEE?

Organic Compounds Containing Halogens has appeared in 109 of the last 186 JEE Main and JEE Advanced papers — about 59% of them — contributing 137 questions in total across those papers.

Is Organic Compounds Containing Halogens an important chapter for JEE?

Judged by how often it is actually tested, it appears in roughly 59% of papers. Chapters above about 50% are effectively guaranteed to show up every session, so they repay thorough preparation; lower-frequency chapters are better treated as targeted revision.

Where do these Organic Compounds Containing Halogens questions come from?

Every question is from an official JEE Main or JEE Advanced paper, transcribed from the original paper and tagged to this chapter. Answers follow the official answer key.

Organic Compounds Containing Halogens JEE Previous Year Questions with Answers

Q1·ChemistrySingle correctJEE Main 2026

Given below are two statements: Statement I: Due to increase in van der Waals forces, the order of boiling points is

CH_3CH_2CH_2I > CH_3CH_2I > CH_3I

. Statement II: As para-dichlorobenzene is more symmetric, its melting point is higher than ortho-dichlorobenzene, however its boiling point is lower than ortho-dichlorobenzene. In the light of the above statements, choose the correct answer from the options given below:

(A)Both Statement I and Statement II are true
(B)Both Statement I and Statement II are false
(C)Statement I is true but Statement II is false
(D)Statement I is false but Statement II is true

Q2·ChemistrySingle correctJEE Main 2026

n-Butane on monochlorination under photochemical condition gives an optically active compound "P". "P" on further chlorination gives dichloro compounds. The number of dichloro compounds obtained (ignore stereoisomers) is:

(A)3
(B)4
(C)5
(D)6

Q3·ChemistrySingle correctJEE Main 2026

Given below are two statements: Statement I: 3-phenylpropene reacts with HBr and gives secondary alkyl bromide having a chiral carbon atom as the major product. Statement II: Aryl chlorides and aryl cyanides can be prepared by Sandmeyer reaction as well as Gattermann reaction. In the light of the above statements, choose the correct answer from the options given below

(A)Both Statement I and Statement II are true
(B)Both Statement I and Statement II are false
(C)Statement I is true but Statement II is false
(D)Statement I is false but Statement II is true

Q4·ChemistryNumericalJEE Main 2026

RMgI when treated with ice cold water liberated a gas which occupied 1.4 dm³/g at STP. The gas produced is further reacted with iodine in presence of HIO₃ to give compound (X). Compound (X) in presence of Na and dry ether produced compound (Y). Molar mass of compound (Y) is _______ g mol⁻¹. (Nearest integer)

Q5·ChemistrySingle correctJEE Main 2026

Match List-I (Name of reaction) with List-II (Reagent or catalyst used). Choose the correct answer from the options given below:

List-I (Name of reaction)	List-II (Reagent or catalyst used)
A.Finkelstein reaction	I. $SbF_3$
B.Swarts reaction	II. $Na$ , dry ether
C.Sandmeyer's reaction	III. $NaI$
D.Fittig reaction	IV. $Cu_2Cl_2$

(A)A-I, B-IV, C-III, D-II
(B)A-III, B-I, C-IV, D-II
(C)A-IV, B-II, C-I, D-III
(D)A-I, B-III, C-II, D-IV

Q6·ChemistrySingle correctJEE Main 2026

Given below are two statements : Statement (I) : Benzyl chloride reacts faster in

S_{N}1

mechanism than ethyl chloride. Statement (II) : Ethyl carbocation intermediate is less stabilized by hyperconjugation than benzyl carbocation by resonance. In the light of the above statements, choose the correct answer from the options given below :

(A)Both Statement I and Statement II are true
(B)Both Statement I and Statement II are false
(C)Statement I is true but Statement II is false
(D)Statement I is false but Statement II is true

Q7·ChemistrySingle correctJEE Main 2026

Correct statements regarding alkyl halides

(R - X)

among the following are: A. Alcohol being less polar solvent as compared to water, alcoholic KOH favours elimination reaction with

R - X

. B. Order of reactivity towards

S_N^1

mechanism is

C_6H_5 - CH_2 - Cl > C_6H_5 - CHCl - C_6H_5

. C. Non substituted aryl halides exhibit properties similar to alkyl halides. D. Vinyl chloride is an example of haloalkene and allyl chloride is an example of haloalkyne. E.

R - Cl

can be prepared by reacting

R - OH

with

SOCl_2

but

Ar - Cl

cannot be prepared by reacting

Ar - OH

with

SOCl_2

. Choose the correct answer from the options given below:

(A)A, B and C Only
(B)B and D Only
(C)A and E Only
(D)D and E Only

Q8·ChemistrySingle correctJEE Main 2026

Which of the following reaction is NOT correctly represented ?

(A)(1)
(B)(2)
(C)(3)
(D)(4)

Q9·ChemistrySingle correctJEE Main 2026

Given below are two statements : Statement I : 'C–Cl' bond is stronger in

\mathrm{CH_2 = CH - Cl}

than

\mathrm{CH_3 - CH_2 - Cl}

Statement II : The given optically active molecule, on hydrolysis gives a solution that can rotate the plane polarized light. In the light of the above statements, choose the correct answer from the options given below

(A)Statement I is false but Statement II is true
(B)Both Statement I and Statement II are true
(C)Both Statement I and Statement II are false
(D)Statement I is true but Statement II is false

Q10·ChemistrySingle correctJEE Main 2026

The correct sequence of reagents for the above conversion of X to Y is :

(A)(i) NaOH (aq) (ii) Jones reagent (iii) H $_3$ O $^+$
(B)B $_2$ H $_6$ /H $_2$ O $_2$ (ii) NaOEt (iii) Jones reagent
(C)(i) Jones reagent (ii) NaOEt (iii) Hot KMnO $_4$ /KOH
(D)(i) NaOEt (ii) B $_2$ H $_6$ /H $_2$ O $_2$ (iii) Jones reagent

Q11·ChemistryNumericalJEE Main 2026

Consider all the structural isomers with molecular formula C

_5

H

_{11}

Br are separately treated with KOH (aq) to give respective substitution products, without any rearrangement. The number of products which can exhibit optical isomerism from these is ________.

Q12·ChemistrySingle correctJEE Main 2026

The correct order of the rate of reaction of the following reactants with nucleophile by S

_N

1 mechanism is : (Given : Structure I and II are rigid)

(A)IV < III < II < I
(B)III < I < II < IV
(C)II < I< III < IV
(D)I < II < III < IV

Q13·ChemistrySingle correctJEE Main 2026

The correct order of reactivity of CH

_3

Br in methanol with the following nucleophiles is F

^{-}

, I

^{-}

, C

_2

H

_5

O

^{-}

and C

_6

H

_5

O

^{-}

(A)I $^{-}$ > C $_6$ H $_5$ O $^{-}$ > F $^{-}$ > C $_2$ H $_5$ O $^{-}$
(B)I $^{-}$ > C $_2$ H $_5$ O $^{-}$ > C $_6$ H $_5$ O $^{-}$ > F $^{-}$
(C)I $^{-}$ > C $_2$ H $_5$ O $^{-}$ > F $^{-}$ > C $_6$ H $_5$ O $^{-}$
(D)I $^{-}$ > F $^{-}$ > C $_6$ H $_5$ O $^{-}$ > C $_2$ H $_5$ O $^{-}$

Q14·ChemistrySingle correctJEE Main 2026

As compared with chlorocyclohexane, which of the following statements correctly apply to chlorobenzene ? A. The magnitude of negative charge is more on chlorine atoms B. The C – Cl bond has partial double bond character C. C – Cl bond is less polar D. C – Cl bond is longer due to repulsion between delocalised electrons of the aromatic ring and lone pairs of electrons of chlorine. E. The C–Cl bond is formed using sp

^2

hybridised orbital of carbon. Choose the correct answer from the options given below :

(A)A, C and E only
(B)B, C and D only
(C)A, D and E only
(D)B, C and E only

Q15·ChemistrySingle correctJEE Main 2026

The correct order of reactivity of the following benzyl halides towards reaction with KCN is:

(A)a > b > c > d
(B)b > a > d > c
(C)b > a > c > d
(D)a > b > d > d

Q16·ChemistrySingle correctJEE Main 2026

Given below are four compounds: (a) n-propyl choride (b) iso-propyl chloride (c) sec-butyl chloride (d) neo-pentyl chloride Percentage of carbon in the one which exhibits optical isomerism is:

(A)52
(B)56
(C)46
(D)40

Q17·ChemistrySingle correctJEE Main 2026

The correct order of the rate of the reaction for the following reaction with respect to nucleophiles is:

\text{CH}_{3}\text{Br} + \text{Nu}^{\ominus} \longrightarrow \text{CH}_{3}\text{Nu} + \text{Br}^{\ominus}

(A) $\text{PhO}^{-} > {}^{-}\text{OH} > \text{CH}_{3}\text{COO}^{-} > \text{ClO}_{4}^{-}$
(B) $\text{ClO}_{4}^{-} > \text{CH}_{3}\text{COO}^{-} > {}^{-}\text{OH} > \text{PhO}^{-}$
(C) $\text{CH}_{3}\text{COO}^{-} > \text{PhO}^{-} > {}^{-}\text{OH} > \text{ClO}_{4}^{-}$
(D) ${}^{-}\text{OH} > \text{PhO}^{-} > \text{CH}_{3}\text{COO}^{-} > \text{ClO}_{4}^{-}$

Q18·ChemistryMultiple correctJEE Advanced 2025

For the reaction sequence given below, the correct statement(s) is(are) (In the options, X is any atom other than carbon and hydrogen, and it is different in P, Q and R)

(A)C−X bond length in P, Q and R follows the order Q > R > P.
(B)C−X bond enthalpy in P, Q and R follows the order R > P > Q.
(C)Relative reactivity toward $S_N2$ reaction in P, Q and R follows the order P > R > Q.
(D) $pK_a$ value of the conjugate acids of the leaving groups in P, Q and R follows the order R > Q > P.

Q19·ChemistrySingle correctJEE Main 2025

Match the LIST-I (Conversion) with LIST-II (Reagents and conditions used). Choose the correct answer from the options given below:

LIST-I (Conversion)	LIST-II (Reagents and conditions used)
A.see figure	I.Warm, $H_2O$
B.see figure	II.(a) NaOH, 368 K; (b) $H_3O^+$
C.see figure	III.(a) NaOH, 443 K; (b) $H_3O^+$
D.see figure	IV.(a) NaOH, 623 K, 300 atm; (b) $H_3O^+$

(A)(A)-(II), (B)-(III), (C)-(I), (D)-(IV)
(B)(A)-(III), (B)-(IV), (C)-(II), (D)-(I)
(C)(A)-(IV), (B)-(III), (C)-(II), (D)-(I)
(D)(A)-(IV), (B)-(III), (C)-(I), (D)-(II)

Q20·ChemistrySingle correctJEE Main 2025

Given below are two statements: Statement (I): Alcohols are formed when alkyl chlorides are treated with aqueous potassium hydroxide by elimination reaction. Statement (II): In alcoholic potassium hydroxide, alkyl chlorides form alkenes by abstracting the hydrogen from the

\beta

-carbon. In the light of the above statements, choose the most appropriate answer from the options given below:

(A)Both Statement I and Statement II are incorrect
(B)Statement I is incorrect but Statement II is correct
(C)Statement I is correct but Statement II is incorrect
(D)Both Statement I and Statement II are correct

Q21·ChemistrySingle correctJEE Main 2025

In the following series of reactions identify the major products A & B respectively.

(A)(1)
(B)(2)
(C)(3)
(D)(4)

Q22·ChemistrySingle correctJEE Main 2025

Match List-I (Reaction) with List-II (Name of reaction). Choose the correct answer from the options given below:

List-I (Reaction)	List-II (Name of reaction)
A. $2\,C_6H_5Br + 2Na \xrightarrow{\text{dry ether}}$	I.Fittig reaction
B. $ArN_2X \xrightarrow{Cu/HX} ArCl + N_2 + CuX$	II.Finkelstein reaction
C. $C_2H_5Br + NaI \xrightarrow{}$	III.Lucas reaction
D. $(CH_3)_3C{-}OH + HCl \xrightarrow{ZnCl_2}$	IV.Gattermann reaction

(A)(A)-(II), (B)-(III), (C)-(IV), (D)-(I)
(B)(A)-(I), (B)-(IV), (C)-(II), (D)-(III)
(C)(A)-(IV), (B)-(I), (C)-(III), (D)-(II)
(D)(A)-(I), (B)-(II), (C)-(IV), (D)-(III)

Q23·ChemistryIntegerJEE Main 2025

2-bromopentane

\xrightarrow{\text{alc. KOH}} P\ (\text{Major product}) \xrightarrow{Br_2} Q

. Consider the above sequence of reactions. 151 g of 2-bromopentane is made to react. Yield of major product P is 80% whereas Q is 100%. Mass of product Q obtained is ______ g. (Given molar mass in g mol

^{-1}

— H:1, C:12, O:16, Br:80)

Q24·ChemistrySingle correctJEE Main 2025

An optically active alkyl halide C

_4

H

_9

Br [A] reacts with hot KOH dissolved in ethanol and forms alkene [B] as major product which reacts with bromine to give dibromide [C]. The compound [C] is converted into a gas [D] upon reacting with alcoholic NaOH. During hydration 18 gram of water is added to 1 mole of gas [D] on warming with mercuric sulphate and dilute acid at 333 K to form compound [E]. The IUPAC name of compound [E] is:

(A)But-2-yne
(B)Butan-2-ol
(C)Butan-2-one
(D)Butan-1-al

Q25·ChemistrySingle correctJEE Main 2025

In the following substitution reaction (shown in the figure), the product 'P' formed is:

(A)(1)
(B)(2)
(C)(3)
(D)(4)

Q26·ChemistrySingle correctJEE Main 2025

Which among the following halides (shown in the figure) will generate the most stable carbocation in a nucleophilic substitution reaction?

(A)(1)
(B)(2)
(C)(3)
(D)(4)

Q27·ChemistrySingle correctJEE Main 2025

Given below are two statements: Statement I: (the compound shown in the figure) will undergo alkaline hydrolysis at a faster rate than (the second compound shown). Statement II: (for the compound shown) intramolecular substitution takes place first by involving lone pair of electrons on nitrogen. In the light of the above statements, choose the most appropriate answer from the options given below:

(A)Both Statement I and Statement II are incorrect
(B)Statement I is incorrect but statement II is correct
(C)Both Statement I and Statement II are correct
(D)Statement I is correct but Statement II is incorrect

Q28·ChemistrySingle correctJEE Main 2025

The product B formed in the following reaction sequence is (4-methylstyrene, shown in figure)

\xrightarrow{\text{HCl}}

(A)(Major)

\xrightarrow{\text{AgCN}}

(B)(Major). Choose the correct structure of B from the options shown in the figure:

(A)(1)
(B)(2)
(C)(3)
(D)(4)

Q29·ChemistrySingle correctJEE Main 2025

The products A and B in the following reactions, respectively are: A

\xleftarrow{AgNO_2}

CH

_3

-CH

_2

-CH

_2

-Br

\xrightarrow{AgCN}

B

(A)CH $_3$ -CH $_2$ -CH $_2$ -ONO, CH $_3$ -CH $_2$ -CH $_2$ -NC
(B)CH $_3$ -CH $_2$ -CH $_2$ -ONO, CH $_3$ -CH $_2$ -CH $_2$ -CN
(C)CH $_3$ -CH $_2$ -CH $_2$ -NO $_2$ , CH $_3$ -CH $_2$ -CH $_2$ -CN
(D)CH $_3$ -CH $_2$ -CH $_2$ -NO $_2$ , CH $_3$ -CH $_2$ -CH $_2$ -NC

Q30·ChemistrySingle correctJEE Main 2025

The major product of the following reaction (dibromide shown in the figure)

\xrightarrow{\text{KOH(EtOH)}, \Delta}

Major product, is:

(A)6-Phenylhepta-2,4-diene
(B)2-Phenylhepta-2,5-diene
(C)6-Phenylhepta-3,5-diene
(D)2-Phenylhepta-2,4-diene

Q31·ChemistrySingle correctJEE Main 2025

Given below are two statements : Statement-I : The conversion proceeds well in the less polar medium.

CH_3CH_2CH_2CH_2Cl\xrightarrow{HO^-}CH_3CH_2CH_2CH_2OH+Cl^-

. Statement-II : The conversion proceeds well in the more polar medium.

CH_3CH_2CH_2CH_2Cl\xrightarrow{R_3N}CH_3CH_2CH_2CH_2\overset{+}{N}R_3\,Cl^-

. In the light of the above statements, choose the correct answer given below.

(A)Both statement I and statement II are true
(B)Both statement I and statement II are false
(C)Statement I is false but statement II is true
(D)Statement I is true but statement II is false

Q32·ChemistrySingle correctJEE Main 2025

3-Bromo-5-iodobenzyl chloride is treated with AgCN. The structure of the major product formed is:

(A)(1)
(B)(2)
(C)(3)
(D)(4)

Q33·ChemistrySingle correctJEE Main 2025

The ascending order of relative rate of solvolysis of following compounds (A), (B), (C) and (D) (shown in the figure) is :

(A)(D) < (A) < (B) < (C)
(B)(C) < (B) < (A) < (D)
(C)(D) < (B) < (A) < (C)
(D)(C) < (D) < (B) < (A)

Q34·ChemistrySingle correctJEE Main 2025

Match List-I (Name Reaction) with List-II (Product Obtained). Choose the correct answer from the options given below:

List-I (Name Reaction)	List-II (Product Obtained)
A.Swarts reaction	I.Ethyl benzene
B.Sandmeyer's reaction	II.Ethyl iodide
C.Wurtz Fittig reaction	III.Cyanobenzene
D.Finkelstein reaction	IV.Ethyl fluoride

(A)A-II, B-III, C-I, D-IV
(B)A-IV, B-I, C-III, D-II
(C)A-IV, B-III, C-I, D-II
(D)A-II, B-I, C-III, D-IV

Q35·ChemistrySingle correctJEE Main 2025

RBr

\xrightarrow{\text{(i) Mg, dry ether (ii) }H_2O}

2-Methylbutane. The maximum number of RBr producing 2-Methylbutane by above sequence of reactions is ______. (Consider the structural isomers only)

(A)4
(B)5
(C)3
(D)1

Q36·ChemistrySingle correctJEE Main 2025

Given below are two statements. Statement I: CH₃–O–CH₂–Cl will undergo SN1 reaction though it is a primary halide. Statement II: (CH₃)₃C–CH₂–Cl will not undergo SN2 reaction very easily though it is a primary halide. In the light of the above statements, choose the most appropriate answer:

(A)Statement I is incorrect but Statement II is correct
(B)Both Statement I and Statement II are incorrect
(C)Statement I is correct but Statement II is incorrect
(D)Both Statement I and Statement II are correct

Q37·ChemistrySingle correctJEE Main 2024

Given below are two statements : one is labelled as Assertion (A) and the other is labelled as Reason (R) : Assertion (A) :

S_N2

reaction of

C_6H_5CH_2Br

occurs more readily than the

S_N2

reaction of

CH_3CH_2Br

. Reason (R) : The partially bonded unhybridized p-orbital that develops in the trigonal bipyramidal transition state is stabilized by conjugation with the phenyl ring. In the light of the above statements, choose the most appropriate answer from the options given below :

(A)(A) is not correct but (R) is correct
(B)Both (A) and (R) are correct but (R) is not the correct explanation of (A)
(C)Both (A) and (R) are correct and (R) is the correct explanation of (A)
(D)(A) is correct but (R) is not correct

Q38·ChemistrySingle correctJEE Main 2024

In the reaction shown in the figure, the product 'P' is:

(A)(1)
(B)(2)
(C)(3)
(D)(4)

Q39·ChemistrySingle correctJEE Main 2024

In the following sequence of reaction, the major products B and C respectively are :

(A)(1)
(B)(2)
(C)(3)
(D)(4)

Q40·ChemistrySingle correctJEE Main 2024

Which among the following compounds will undergo fastest

S_N2

reaction?

(A)(1)
(B)(2)
(C)(3)
(D)(4)

Q41·ChemistrySingle correctJEE Main 2024

Given below are two statements: Statement (I): SN2 reactions are "stereospecific", indicating that they result in the formation of only one stereo-isomer as the product. Statement (II): SN1 reactions generally result in formation of product as racemic mixtures. In the light of the above statements, choose the correct answer from the options given below:

(A)Statement I is true but Statement II is false
(B)Statement I is false but Statement II is true
(C)Both Statement I and Statement II is true
(D)Both Statement I and Statement II is false

Q42·ChemistrySingle correctJEE Main 2024

Match List-I (Compound) with List-II (Uses). Choose the correct answer from the options given below:

List-I (Compound)	List-II (Uses)
A.Iodoform	I.Fire extinguisher
B.Carbon tetrachloride	II.Insecticide
C.CFC	III.Antiseptic
D.DDT	IV.Refrigerants

(A)A-I, B-II, C-III, D-IV
(B)A-III, B-II, C-IV, D-I
(C)A-III, B-I, C-IV, D-II
(D)A-II, B-IV, C-I, D-III

Q43·ChemistryNumericalJEE Main 2024

The reaction sequence shown in the figure is carried out (starting from the compound in the figure). The total sum of

\pi

electrons in product A and product B is _______ (nearest integer).

Q44·ChemistrySingle correctJEE Main 2024

Consider the reaction shown in the figure. The product 'A' is:

(A)(1)
(B)(2)
(C)(3)
(D)(4)

Q45·ChemistrySingle correctJEE Main 2024

1-Bromo-1-methylcyclopentane is heated with sodium ethoxide (NaOEt) in ethanol (

\text{C}_2\text{H}_5\text{OH}

). Identify the major product formed from the structures shown:

(A)(1)
(B)(2)
(C)(3)
(D)(4)

Q46·ChemistrySingle correctJEE Main 2024

Identify the major product 'P' formed when the compound shown in the figure is treated with alcoholic KOH and heat.

(A)(1)
(B)(2)
(C)(3)
(D)(4)

Q47·ChemistrySingle correctJEE Main 2024

In the following sequence of reactions,

A\ (p\text{-}BrC_6H_4CH_2CH_2Br)\xrightarrow{\text{alc. NaOH}}B\xrightarrow{\text{HBr/Ether}}C

, identify

(B)

and

(C)

(shown in the figure) and how are

(A)

and

(C)

related?

(A)(1)
(B)(2)
(C)(3)
(D)(4)

Q48·ChemistrySingle correctJEE Main 2024

Identify the correct set of reagents or reaction conditions "X" and "Y" in the following transformation:

CH_3-CH_2-CH_2-Br\xrightarrow{X}

Product

\xrightarrow{Y}CH_3-\underset{\underset{Br}{|}}{CH}-CH_3

(A)X = conc. alc. NaOH, $80^\circ C$ ; Y = $Br_2/CHCl_3$
(B)X = dil. aq. NaOH, $20^\circ C$ ; Y = HBr/acetic acid
(C)X = conc. alc. NaOH, $20^\circ C$ ; Y = HBr/acetic acid
(D)X = dil. aq. NaOH, $20^\circ C$ ; Y = $Br_2/CHCl_3$

Q49·ChemistrySingle correctJEE Main 2024

Find out the major product formed from the following reaction (the substrate is shown in the figure, treated with

\text{Me}_2\text{NH}

, 2 equivalents):

(A)(1)
(B)(2)
(C)(3)
(D)(4)

Q50·ChemistrySingle correctJEE Main 2024

Given below are two statements: Assertion (A): Haloalkanes react with KCN to form alkyl cyanides as a main product while with AgCN form isocyanides as a main product. Reason (R): KCN and AgCN both are highly ionic compounds. In the light of the above statement, choose the most appropriate answer from the options given below:

(A)(A) is correct but (R) is not
(B)Both (A) and (R) are correct but (R) is not the correct explanation of (A)
(C)(A) is not correct but (R) is correct
(D)Both (A) and (R) are correct and (R) is the correct explanation of (A)

Q51·ChemistryNumericalJEE Main 2024

In the reaction

CH_3CH_2Br+NaOH

, with ethanol (

C_2H_5OH

) as medium giving Product A and with water (

H_2O

) as medium giving Product B, the total number of hydrogen atoms in product A and product B is ______.

Q52·ChemistrySingle correctJEE Main 2024

The product (C) in the below mentioned reaction is:

CH_3-CH_2-CH_2-Br\xrightarrow[\Delta]{KOH(alc)}A\xrightarrow{HBr}B\xrightarrow[\Delta]{KOH(aq)}C

(A)Propan-1-ol
(B)Propene
(C)Propyne
(D)Propan-2-ol

Q53·ChemistryNumericalJEE Main 2024

Number of isomeric products formed by mono-chlorination of 2-methylbutane in presence of sunlight is ______.

Q54·ChemistrySingle correctJEE Main 2024

Example of vinylic halide is:

(A)(1)
(B)(2)
(C)(3)
(D)(4)

Q55·ChemistrySingle correctJEE Main 2024

Given below are two statement one is labeled as Assertion (A) and the other is labeled as Reason (R). Assertion (A):

CH_2=CH-CH_2-Cl

is an example of allyl halide. Reason (R): Allyl halides are the compounds in which the halogen atom is attached to

sp^2

hybridised carbon atom. In the light of the two above statements, choose the most appropriate answer from the options given below:

(A)(A) is true but (R) is false
(B)Both (A) and (R) are true but (R) is not the correct explanation of (A)
(C)(A) is false but (R) is true
(D)Both (A) and (R) are true and (R) is the correct explanation of (A)

Q56·ChemistryNumericalJEE Main 2024

2-chlorobutane

+\ Cl_2 \rightarrow C_4H_8Cl_2

(isomers). Total number of optically active isomers shown by

C_4H_8Cl_2

, obtained in the above reaction is ______.

Q57·ChemistrySingle correctJEE Main 2024

Given below are two statements: Statement-I: High concentration of strong nucleophilic reagent with secondary alkyl halides which do not have bulky substituents will follow

S_N2

mechanism. Statement-II: A secondary alkyl halide when treated with a large excess of ethanol follows

S_N1

mechanism. In the light of the above statements, choose the most appropriate answer from the options given below:

(A)Statement I is true but Statement II is false.
(B)Statement I is false but Statement II is true.
(C)Both Statement I and Statement II are false.
(D)Both Statement I and Statement II are true.

Q58·ChemistrySingle correctJEE Main 2024

Given below are two statements : one is labelled as Assertion A and the other is labelled as Reason R : Assertion A : Aryl halides cannot be prepared by replacement of hydroxyl group of phenol with halogen atom. Reason R : Phenols react with halogen acids violently. In the light of the above statements, choose the most appropriate from the options given below:

(A)Both A and R are true but R is NOT the correct explanation of A
(B)A is false but R is true
(C)A is true but R is false
(D)Both A and R are true and R is the correct explanation of A

Q59·ChemistrySingle correctJEE Main 2024

The major product (P) in the following reaction is

(A)(1)
(B)(2)
(C)(3)
(D)(4)

Q60·ChemistrySingle correctJEE Main 2024

Alkyl halide is converted into alkyl isocyanide by reaction with:

(A)NaCN
(B)NH4CN
(C)KCN
(D)AgCN

Q61·ChemistrySingle correctJEE Main 2024

Which among the following halide/s will not show

S_N1

reaction ? Choose the most appropriate answer from the options given below :

(A)(A), (B) and (D) only
(B)(A) and (B) only
(C)(B) and (C) only
(D)(B) only

Q62·ChemistrySingle correctJEE Advanced 2023

Match the reactions in List-I with the features of their products in List-II and choose the correct option.

List-I	List-II
P.(-)-1-Bromo-2-ethylpentane (single enantiomer) $\xrightarrow[\text{S}_\text{N}\text{2 reaction}]{\text{aq. NaOH}}$	1.Inversion of configuration
Q.(-)-2-Bromopentane (single enantiomer) $\xrightarrow[\text{S}_\text{N}\text{2 reaction}]{\text{aq. NaOH}}$	2.Retention of configuration
R.(-)-3-Bromo-3-methylhexane (single enantiomer) $\xrightarrow[\text{S}_\text{N}\text{1 reaction}]{\text{aq. NaOH}}$	3.Mixture of enantiomers
S.(single enantiomer) $\xrightarrow[\text{S}_\text{N}\text{1 reaction}]{\text{aq. NaOH}}$	4.Mixture of structural isomers
	5.Mixture of diastereomers

(A)P $\rightarrow$ 1; Q $\rightarrow$ 2; R $\rightarrow$ 5; S $\rightarrow$ 3
(B)P $\rightarrow$ 2; Q $\rightarrow$ 1; R $\rightarrow$ 3; S $\rightarrow$ 5
(C)P $\rightarrow$ 1; Q $\rightarrow$ 2; R $\rightarrow$ 5; S $\rightarrow$ 4
(D)P $\rightarrow$ 2; Q $\rightarrow$ 4; R $\rightarrow$ 3; S $\rightarrow$ 5

Q63·ChemistrySingle correctJEE Advanced 2023

In the following reactions,

\mathbf{P}

,

\mathbf{Q}

,

\mathbf{R}

, and

\mathbf{S}

are the major products. The correct statement about

\mathbf{P}

,

\mathbf{Q}

,

\mathbf{R}

, and

\mathbf{S}

is

(A) $\mathbf{P}$ is a primary alcohol with four carbons.
(B) $\mathbf{Q}$ undergoes Kolbe's electrolysis to give an eight-carbon product.
(C) $\mathbf{R}$ has six carbons and it undergoes Cannizzaro reaction.
(D) $\mathbf{S}$ is a primary amine with six carbons.

Q64·ChemistrySingle correctJEE Main 2023

2

-Methyl propyl bromide reacts with

C_{2}H_{5}O^{-}

and gives

'A'

whereas on reaction with

C_{2}H_{5}OH

it gives

'B'

. The mechanism followed in these reactions and the products

'A'

and

'B'

respectively are:

(A) $S_N 2$ ; A = iso-butyl ethyl ether; $S_N 1$ ; B = tert-butyl ethyl ether
(B) $S_N 1$ ; A = tert-butyl ethyl ether; $S_N 2$ ; B = 2-butyl ethyl ether
(C) $S_N 1$ ; A = tert-butyl ethyl ether; $S_N 2$ ; B = iso-butyl ethyl ether
(D) $S_N 2$ ; A = $2$ -butyl ethyl ether; $S_N 1$ ; B = iso-butyl ethyl ether

Q65·ChemistrySingle correctJEE Main 2023

Match List I (Reagent) with List II (Product). Choose the correct answer from the options given below:

List I (Reagent)	List II (Product)
A. $KOH$ (alc)	I.Nitrile
B. $KCN$ (alc)	II.Ester
C. $AgNO_2$	III.Alkene
D. $H_3CCOOAg$	IV.Nitroalkane

(A)A-IV, B-III, C-II, D-I
(B)A-III, B-I, C-IV, D-II
(C)A-I, B-II, C-III, D-IV
(D)A-I, B-III, C-IV, D-II

Q66·ChemistrySingle correctJEE Main 2023

Which of the following compounds is an example of Freon?

(A) $C_2Cl_2F_2$
(B) $C_2HF_3$
(C) $C_2H_2F_2$
(D) $C_2F_4$

Q67·ChemistryNumericalJEE Main 2023

The number of possible isomeric products formed when 3-chloro-1-butene reacts with HCl through carbocation formation is ____.

Q68·ChemistrySingle correctJEE Main 2023

Reaction (I): p-methoxybenzyl chloride reacts with a nucleophile Nu to give p-methoxybenzyl-Nu. Reaction (II): p-nitrobenzyl chloride reacts with a nucleophile Nu to give p-nitrobenzyl-Nu. Where Nu = Nucleophile. Find out the correct statement from the options given below for the above 2 reactions.

(A)Reaction (I) is of 2nd order and reaction (II) is of 1st order
(B)Reaction (I) and (II) both are of 2nd order
(C)Reaction (I) is of 1st order and reaction (II) is of 2nd order
(D)Reactions (I) and (II) both are of 1st order

Q69·ChemistrySingle correctJEE Main 2023

The compound from the following that will not produce a precipitate on reaction with

AgNO_3

is (choose from the structures shown in the figure):

(A)(1)
(B)(2)
(C)(3)
(D)(4)

Q70·ChemistrySingle correctJEE Main 2023

H_3C\text{--}CH_2\text{--}CH(OH)\text{--}CH_3 \xrightarrow{(i)\ NaI,\ H_3PO_4;\ (ii)\ Mg,\ Dry\ ether;\ (iii)\ D_2O}

[X] Product. The product [X] formed in the above reaction is:

(A) $H_3C\text{--}CH_2\text{--}CHD\text{--}CH_3$
(B) $H_3C\text{--}CH_2\text{--}CH(CH_3)D$ (deuterium on the added carbon)
(C) $H_3C\text{--}CH_2\text{--}CH=CH_2$
(D) $H_3C\text{--}CH=CH\text{--}CH_3$

Q71·ChemistrySingle correctJEE Main 2023

Identify the correct order of reactivity for the following pairs towards the respective mechanism: (A) S

_N

2 (B) S

_N

1 (C) Electrophilic substitution (D) Nucleophilic substitution. Choose the correct answer from the options given below:

(A)(A), (B) and (D) only
(B)(A), (B), (C) and (D)
(C)(A), (C) and (D) only
(D)(B), (C) and (D) only

Q72·ChemistrySingle correctJEE Main 2023

The correct order of reactivity of the following haloarenes towards nucleophilic substitution with aqueous NaOH is:

(A)A > B > D > C
(B)C > A > D > B
(C)D > C > B > A
(D)D > B > A > C

Q73·ChemistrySingle correctJEE Main 2023

For the reaction

RCH_2Br+I^{-}\xrightarrow{\text{Acetone}}RCH_2I+Br^{-}

, the correct statement is:

(A)The transition state formed in the above reaction is less polar than the localised anion
(B)The reaction can occur in acetic acid also
(C)The solvent used in the reaction solvates the ions formed in the rate determining step
(D) $Br^{-}$ can act as a competing nucleophile

Q74·ChemistrySingle correctJEE Main 2023

Identify the incorrect option from the following:

(A)(1)
(B)(2)
(C)(3)
(D)(4)

Q75·ChemistrySingle correctJEE Main 2023

In the following halogenated organic compounds the one with maximum number of chlorine atoms in its structure is:

(A)Freon-12
(B)Gammaxene
(C)Chloropicrin
(D)Chloral

Q76·ChemistrySingle correctJEE Main 2023

The correct order of melting points of dichlorobenzenes is

(A)(1)
(B)(2)
(C)(3)
(D)(4)

Q77·ChemistrySingle correctJEE Main 2023

Match List I (reactions) with List II (name of reaction). Choose the correct answer from the options given below:

List I (Reactions)	List II (Name of reaction)
A.see figure	I.Fittig reaction
B.see figure	II.Wurtz Fittig reaction
C.see figure	III.Finkelstein reaction
D.see figure	IV.Sandmeyer reaction

(A)A-II, B-I, C-IV, D-III
(B)A-IV, B-II, C-III, D-I
(C)A-III, B-II, C-IV, D-I
(D)A-II, B-I, C-III, D-IV

Q78·ChemistrySingle correctJEE Main 2023

The decreasing order towards

S_N1

reaction for the following compounds (a, b, c, d shown in the figure) is:

(A) $a>c>d>b$
(B) $b>d>c>a$
(C) $a>b>c>d$
(D) $d>b>c>a$

Q79·ChemistrySingle correctJEE Main 2023

Identify the correct order for the given property for following compounds. (A) Boiling Point: (B) Density: (C) Boiling Point: (D) Density: (E) Boiling Point: Choose the correct answer from the option given below:

(A)(B), (C) and (D) only
(B)(A), (C) and (D) only
(C)(A), (B) and (E) only
(D)(A), (C) and (E) only

Q80·ChemistrySingle correctJEE Main 2023

The one giving maximum number of isomeric alkenes on dehydrohalogenation reaction is (excluding rearrangement):

(A)2-Bromopropane
(B)2-Bromo-3,3-dimethylpentane
(C)1-Bromo-2-methylbutane
(D)2-Bromopentane

Q81·ChemistrySingle correctJEE Main 2023

The compound which will have the lowest rate towards nucleophilic aromatic substitution on treatment with

OH^-

is (structures shown in the figure):

(A)(1)
(B)(2)
(C)(3)
(D)(4)

Q82·ChemistryNumericalJEE Main 2023

Number of moles of AgCl formed in the following reaction is _______ .

Q83·ChemistryAssertion & ReasonJEE Main 2023

Assertion A: Hydrolysis of an alkyl chloride is a slow reaction but in the presence of NaI, the rate of the hydrolysis increases. Reason R:

\text{I}^-

is a good nucleophile as well as a good leaving group. In the light of the above statements, choose the correct answer from the options given below:

(A)A is false but R is true
(B)A is true but R is false
(C)Both A and R are true but R is NOT the correct explanation of A
(D)Both A and R are true and R is the correct explanation of A

Q84·ChemistrySingle correctJEE Main 2022

Compound 'A' undergoes following sequence of reactions to give compound 'B'. The correct structure and chirality of compound 'B' is: [where Et is –C

_{2}

H

_{5}

]

(A)(A)
(B)(B)
(C)(C)
(D)(D)

Q85·ChemistrySingle correctJEE Main 2022

Considering the above reactions, the compound 'A' and compound 'B' respectively are :

(A)N C ,N C ,N C ,≡≡≡N CN CN C≡≡≡
(B)C N ,≡C N≡
(C)N C ,≡C N≡
(D)C N ,≡N C≡

Q86·ChemistrySingle correctJEE Main 2022

In the above reaction product B is:

(A)(A)
(B)(B)
(C)(C)
(D)(D)

Q87·ChemistryNumericalJEE Main 2022

A 100 mL solution of

CH_{3}CH_{2}MgBr

on treatment with methanol produces 2.24 mL of a gas at STP. The weight of gas produced is ________ mg. [nearest integer]

Q88·ChemistrySingle correctJEE Main 2022

Most stable product of the following reaction is:

(A)(A)
(B)(B)
(C)(C)
(D)(D)

Q89·ChemistrySingle correctJEE Main 2022

Two isomers (A) and (B) with Molar mass 184 g/mol and elemental composition C, 52.2%; H, 4.9% and Br 42.9% gave benzoic acid and p-bromobenzoic acid, respectively on oxidation with KMnO

_4

. Isomer 'A' is optically active and gives a pale yellow precipitate when warmed with alcoholic AgNO

_3

. Isomer 'A' and 'B' are, respectively :

(A)(A)
(B)(B)
(C)(C)
(D)(D)

Q90·ChemistrySingle correctJEE Main 2022

In the given conversion the compound A is:

(A)(A)
(B)(B)
(C)(C)
(D)(D)

Q91·ChemistrySingle correctJEE Main 2022

A

\xrightarrow[\text{(iii) } H_2O/H^+]{\text{(i) } Cl_2, \Delta \ \text{(ii) } CN^-}

4-Bromophenyl acetic acid. In the above reaction ‘A’ is

(A)(A)
(B)(B)
(C)(C)
(D)(D)

Q92·ChemistrySingle correctJEE Main 2022

Which one of the following compounds is inactive towards

S_N1

reaction?

(A)(A)
(B)(B)
(C)(C)
(D)(D)

Q93·ChemistrySingle correctJEE Main 2022

Product 'A' of following sequence of reactions is Printed reaction scheme (words and formulae only): Ethylbenzene

\rightarrow

'A'(Major product) ; on the arrow: (a) Br

_2

.Fe (b) Cl

_2

,

\Delta

(c) alc. KOH

(A)(A)
(B)(B)
(C)(C)
(D)(D)

Q94·ChemistrySingle correctJEE Main 2022

The major product of the following reaction is:

(A)(A)
(B)(B)
(C)(C)
(D)(D)

Q95·ChemistrySingle correctJEE Main 2022

The IUPAC name of ethylidene chloride is :-

(A)1-Chloroethene
(B)1-Chloroethyne
(C)1,2-Dichloroethane
(D)1,1-Dichloroethane

Q96·ChemistrySingle correctJEE Main 2022

The major product in the reaction

(A)t-Butyl ethyl ether
(B)2,2-Dimethyl butane
(C)2-Methyl pent-1-ene
(D)2-Methyl prop-1-ene

Q97·ChemistryNumericalJEE Main 2022

Consider the above reaction. The number of

\pi

electrons present in the product 'P' is____.

Q98·ChemistryMultiple correctJEE Advanced 2021

The reaction of

\mathbf{Q}

with PhSNa yields an organic compound (major product) that gives positive Carius test on treatment with

\mathrm{Na_2O_2}

followed by addition of

\mathrm{BaCl_2}

. The correct option(s) for

\mathbf{Q}

is (are).

(A)(A)
(B)(B)
(C)(C)
(D)(D)

Q99·ChemistrySingle correctJEE Main 2021

The correct order of reactivity of the given chlorides with acetate in acetic acid is :

(A)(1)
(B)(2)
(C)(3)
(D)(4)

Q100·ChemistrySingle correctJEE Main 2021

The major product of the following reaction is :

(A)(1)
(B)(2)
(C)(3)
(D)(4)

Q101·ChemistrySingle correctJEE Main 2021

For the following :

(A)(1)
(B)(2)
(C)(3)
(D)(4)

Q102·ChemistrySingle correctJEE Main 2021

The major product (A) formed in the reaction given below is :

(A)(1)
(B)(2)
(C)(3)
(D)(4)

Q103·ChemistrySingle correctJEE Main 2021

In the following sequence of reactions the P is :

(A)(1)
(B)(2)
(C)(3)
(D)(4)

Q104·ChemistrySingle correctJEE Main 2021

Among the following compounds I-IV, which one forms a yellow precipitate on reacting sequentially with (i) NaOH (ii) dil.

\mathrm{HNO_3}

(iii)

\mathrm{AgNO_3}

?

(A)II
(B)IV
(C)I
(D)III

Q105·ChemistrySingle correctJEE Main 2021

The correct sequential addition of reagents in the preparation of 3-nitrobenzoic acid from benzene is:

(A) $\mathrm{Br_2/AlBr_3}$ , $\mathrm{HNO_3/H_2SO_4}$ , Mg/ether, $\mathrm{CO_2}$ , $\mathrm{H_3O^+}$
(B) $\mathrm{Br_2/AlBr_3}$ , NaCN, $\mathrm{H_3O^+}$ , $\mathrm{HNO_3/H_2SO_4}$
(C) $\mathrm{Br_2/AlBr_3}$ , $\mathrm{HNO_3/H_2SO_4}$ , NaCN, $\mathrm{H_3O^+}$
(D) $\mathrm{HNO_3/H_2SO_4}$ , $\mathrm{Br_2/AlBr_3}$ , Mg/ether, $\mathrm{CO_2}$ , $\mathrm{H_3O^+}$

Q106·ChemistrySingle correctJEE Main 2021

The correct decreasing order of densities of the following compounds is:

(A)(C) > (B) > (A) > (D)
(B)(A) > (B) > (C) > (D)
(C)(D) > (C) > (B) > (A)
(D)(C) > (D) > (A) > (B)

Q107·ChemistrySingle correctJEE Main 2021

Major product P of above reaction, is :

(A)(A)
(B)(B)
(C)(C)
(D)(D)

Q108·ChemistrySingle correctJEE Main 2021

Given below are two statements : Statement I : C

_{2}

H

_{5}

OH and AgCN both can generate nucleophile. Statement II : KCN and AgCN both will generate nitrile nucleophile with all reaction conditions. Choose the most appropriate option :

(A)Statement I is true but statement II is false
(B)Both statement I and statement II are true
(C)Statement I is false but statement II is true
(D)Both statement I and statement II are false

Q109·ChemistrySingle correctJEE Main 2021

The correct pair(s) of the ambident nucleophiles is (are) : (A) AgCN/KCN (B) RCOOAg/RCOOK (C) AgNO

_{2}

/KNO

_{2}

(D) AgI/KI

(A)(B) and (C) only
(B)(A) only
(C)(A) and (C) only
(D)(B) only

Q110·ChemistrySingle correctJEE Main 2021

The above reaction requires which of the following reaction conditions?

(A)573 K, Cu, 300 atm
(B)623 K, Cu, 300 atm
(C)573 K, 300 atm
(D)623 K, 300 atm

Q111·ChemistrySingle correctJEE Main 2021

The product "A" and "B" formed in above reactions are :

(A)(1)
(B)(2)
(C)(3)
(D)(4)

Q112·ChemistrySingle correctJEE Main 2021

Match List-I with List-II List-I (c) 2CH

_3

CH

_2

Cl + 2Na

\xrightarrow{\text{Ether}}

C

_2

H

_5

– C

_2

H

_5

+ 2NaCl (d) 2C

_2

H

_5

Cl +2Na

\xrightarrow{\text{Ether}}

C

_6

H

_5

– C

_6

H

_5

+ 2NaCl List-II (i) Wurtz reaction (ii) Sandmeyer reaction (iii) Fitting reaction (iv) Gatterman reaction Choose the correct answer from the option given below:

(A)(a)-(ii), (b)-(i), (c)-(iv), (d)-(iii)
(B)(a)-(iii), (b)-(iv), (c)-(i), (d)-(ii)
(C)(a)-(ii), (b)-(iv), (c)-(i), (d)-(iii)
(D)(a)-(iii), (b)-(i), (c)-(iv), (d)-(ii)

Q113·ChemistrySingle correctJEE Main 2021

For the given reaction : What is 'A' ?

(A)(A)
(B)(B)
(C)(C)
(D)(D)

Q114·ChemistrySingle correctJEE Main 2021

Identify A and B in the chemical reaction.

(A)(A)
(B)(B)
(C)(C)
(D)(D)

Q115·ChemistrySingle correctJEE Main 2021

The correct order of the following compounds showing increasing tendency towards nucleophilic substitution reaction is :

(A)(iv) < (i) < (iii) < (ii)
(B)(iv) < (i) < (ii) < (iii)
(C)(i) < (ii) < (iii) < (iv)
(D)(iv) < (iii) < (ii) < (i)

Q116·ChemistrySingle correctJEE Main 2020

The increasing order of the boiling points of the major products A, B and C of the following reactions will be:

(A)B < C < A
(B)C < A < B
(C)A < B < C
(D)A < C < B

Q117·ChemistrySingle correctJEE Main 2020

The decreasing order of reactivity of the following organic molecules towards

\mathrm{AgNO_3}

solution is:

(A)(A) > (B) > (D) > (C)
(B)(C) > (D) > (A) > (B)
(C)(A) > (B) > (C) > (D)
(D)(B) > (A) > (C) > (D)

Q118·ChemistrySingle correctJEE Main 2020

Which of the following compounds will form the precipitate with aq.

AgNO_3

solution most readily ?

(A)(A)
(B)(B)
(C)(C)
(D)(D)

Q119·ChemistrySingle correctJEE Main 2020

In the following reaction sequence, [C] is:

(A)(A)
(B)(B)
(C)(C)
(D)(D)

Q120·ChemistrySingle correctJEE Main 2020

Among the following compounds, which one has the shortest

C - Cl

bond?

(A)(A)
(B)(B)
(C)(C)
(D)(D)

Q121·ChemistrySingle correctJEE Main 2020

The decreasing order or reactivity of the following compounds towards nucleophilic substitution (S

_{N}

2) is:

(A)(II) > (III) > (I) > (IV)
(B)(III) > (II) > (IV) > (I)
(C)(II) > (III) > (IV) > (I)
(D)(IV) > (II) > (III) > (I)

Q122·ChemistryNumericalJEE Main 2020

The total number of monohalogenated organic products in the following (including stereoisomers) reaction is __________. A (Simplest optically active alkene)

\xrightarrow[\text{(ii) X}_2/\Delta]{\text{(i) H}_2/\text{Ni}/\Delta}

Q123·ChemistrySingle correctJEE Main 2020

The decreasing order of reactivity towards dehydrohalogenation (E

_1

) reaction of the following compounds is :

(A)D > B > C > A
(B)B > A > D > C
(C)B > D > C > A
(D)B > D > A > C

Q124·ChemistrySingle correctJEE Main 2020

For the following reactions:

k_s

and

k_e

are respectively, the rate constant for substitution and elimination, and

\mu = \dfrac{k_s}{k_e}

, the correct option is__________

(A) $\mu_B > \mu_A$ and $k_e(A) > k_e(B)$
(B) $\mu_A > \mu_B$ and $k_e(A) > k_e(B)$
(C) $\mu_A > \mu_B$ and $k_e(B) > k_e(A)$
(D) $\mu_B > \mu_A$ and $k_e(B) > k_e(A)$

Q125·ChemistrySingle correctJEE Main 2019

An ' Assertion' and a 'Reason' are given below. Choose the correct answer from the following options. Assertion (A): Vinyl halides do not undergo nucleophilic substitution easily. Reason (R): Even though the intermediate carbocation is stabilized by loosely held p-electrons, the cleavage is difficult because of strong bonding.

(A)Both (A) and (R) are correct statements but (R) is not the correct explanation of (A)
(B)Both (A) and (R) are wrong statements
(C)Both (A) and (R) are correct statements and (R) is the correct explanation of (A)
(D)(A) is a correct statement but (R) is a wrong statement.