In the following sequence of reactions a compound A, (molecular formula C$_{6}$H$_{12}$O$_{2}$) with a straight chain structure gives a C$_{4}$ carboxylic acid. A is : A —[LiAlH$_{4}$ / H$_{3}$O$^{+}$]→ B —[Oxidation]→ C$_{4}$ − carboxylic acid

(C) CH$_{3}$ – CH$_{2}$ – CH$_{2}$ – COO – CH$_{2}$ – CH$_{3}$

(A) CH$_{3}$ – CH$_{2}$ – COO – CH$_{2}$ – CH$_{2}$ – CH$_{3}$

(B) CH$_{3}$–CH$_{2}$–CH(OH)–CH$_{2}$–O–CH=CH$_{2}$

(D) CH$_{3}$ – CH$_{2}$ – CH$_{2}$ – O – CH = CH – CH$_{2}$ – OH

Carboxylic Acids and Derivatives — JEE Previous Year Questions

Every Carboxylic Acids and Derivatives question asked in JEE Main and JEE Advanced across the last 186 papers — 64 questions, each with its correct answer. Free to read, no account needed.

Questions

Papers it appeared in

54/186

Appearance rate

29%

All 64 Carboxylic Acids and Derivatives questions

Most recent papers first.

Q1·ChemistryNumericalJEE Advanced 2026

The sum of total number of carbonyl groups (

>\mathrm{C}=\mathrm{O}

) present in the major products X and Y in the following reactions is ____.

Q2·ChemistrySingle correctJEE Main 2026

Consider the following reaction. The major product (P) formed is:

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

Q3·ChemistrySingle correctJEE Main 2026

Complete the following reaction sequence and give the name of major product 'P'. CH₃ − CH₂ − C ≡ N

\xrightarrow[\text{(ii) } H_3O^+]{\text{(i) } OH^-/H_2O/\Delta}

\xrightarrow[\text{(iv) } H_2O]{\text{(iii) } Cl_2/\text{Red P}}

P (Major product)

(A)2-Chloropropanoic acid
(B)3-Chloropropanoic acid
(C)1-Chloropropane
(D)2-Chloropropane

Q4·ChemistrySingle correctJEE Main 2026

The correct order of acidic strength of the major products formed in the given reactions, is : A.

PhNH_2 \xrightarrow{(1)\ NaNO_2+HCl\,(<5^\circ C)\ \ (2)\ CuCN\ \ (3)\ H_3O^+/\Delta} [A]

CH_3CH_2CHO \xrightarrow[\Delta]{[Ag(NH_3)_2]^+,\ OH^-} [B]

CH_4 + O_2 \xrightarrow[(ii)\ Na_2Cr_2O_7/H^+]{(i)\ Mo_2O_3} [C]

PhCH_2MgBr + CO_2 \xrightarrow[H_3O^+]{Dry\ ether} [D]

Choose the correct answer from the options given below :

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

Q5·ChemistryNumericalJEE Main 2026

Grignard reagent RMgBr(P) reacts with water and forms a gas (Q). One gram of Q occupies 1.4

\text{dm}^{3}

at STP. (P) on reaction with dry ice in dry ether followed by

\text{H}_{3}\text{O}^{+}

forms a compound (Z). 0.1 mole of (Z) will weigh _______ g. (Nearest integer)

Q6·ChemistryMultiple correctJEE Advanced 2025

For the reaction sequence given below, the correct statement(s) is(are)

(A)P is optically active.
(B)S gives Bayer's test.
(C)Q gives effervescence with aq. NaHCO $_{3}$ .
(D)R is an alkyne.

Q7·ChemistrySingle correctJEE Advanced 2025

The correct reaction/reaction sequence that would produce a dicarboxylic acid as the major product is

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

Q8·ChemistrySingle correctJEE Main 2025

A\xrightarrow{\text{(i) NaOH (ii) }H_3O^+}B\xrightarrow{\text{(i) EtOH (ii) }H_2SO_4,\,\Delta}C

. 'A' shows positive Lassaigne's test for N and its molar mass is 121. 'B' gives effervescence with aq.

NaHCO_3

. 'C' gives fruity smell. Identify A, B and C from the following:

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

Q9·ChemistrySingle correctJEE Main 2025

A toxic compound "A" when reacted with NaCN in aqueous acidic medium yields an edible cooking component and food preservative "B". "B" is converted to "C" by diborane and can be used as an additive to petrol to reduce emission. "C" upon reaction with oleum at

140^\circ C

yields an inhalable anaesthetic "D". Identify "A", "B", "C" and "D", respectively.

(A)Methanol; formaldehyde; methyl chloride; chloroform
(B)Ethanol; acetonitrile; ethylamine; ethylene
(C)Methanol; acetic acid; ethanol; diethyl ether
(D)Acetaldehyde; 2-hydroxypropanoic acid; propanoic acid; dipropyl ether

Q10·ChemistrySingle correctJEE Main 2025

Consider the following molecules: (p)

CH_3CH_2COCl

(acyl chloride), (q)

CH_3CH_2CO-O-COCH_3

(anhydride), (r)

CH_3CH_2CO-O-CH_2CH_3

(ester), (s)

CH_3CH_2CONH_2

(amide). The correct order of rate of hydrolysis is:

(A)r > q > p > s
(B)q > p > r > s
(C)p > r > q > s
(D)p > q > r > s

Q11·ChemistrySingle correctJEE Main 2025

Consider the following reactions. From these reactions which reaction will give carboxylic acid as a major product? (A)

R{-}C\equiv N \xrightarrow{\text{(i) }H^+/H_2O,\ \text{mild}}

(B)

R{-}MgX \xrightarrow{\text{(i) }CO_2\ \text{(ii) }H_3O^+}

(C)

R{-}C\equiv N \xrightarrow{\text{(i) }SnCl_2\cdot3HCl\ \text{(ii) }H_3O^+}

(D)

R{-}CH_2{-}OH \xrightarrow{PCC}

(E)

C_6H_5COCl \xrightarrow{H_2/Pd\text{-}BaSO_4} C_6H_5CHO

. Choose the correct answer from the options given below:

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

Q12·ChemistrySingle correctJEE Main 2025

The compounds that produce CO

_2

with aqueous NaHCO

_3

solution are (compounds A-E are shown in the figure). Choose the correct answer from the options given below:

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

Q13·ChemistryIntegerJEE Advanced 2024

In the following reaction sequence, major product

\mathbf{P}

is formed. Glycerol reacts completely with excess

\mathbf{P}

in the presence of an acid catalyst to form

\mathbf{Q}

. Reaction of

\mathbf{Q}

with excess NaOH followed by the treatment with CaCl

_{2}

yields Ca – soap

\mathbf{R}

, quantitatively. Starting with one mole of

\mathbf{Q}

, the amount of

\mathbf{R}

produced in gram is ___________. [Given, atomic weight: H = 1, C = 12, N = 14, O = 16, Na = 23, Cl = 35, Ca = 40]

Q14·ChemistrySingle correctJEE Main 2024

Identify the major product

(P)

in the following reaction: cyclopentane carboxylic acid

\xrightarrow{\text{i) }Br_2/\text{Red P}}\xrightarrow{\text{ii) }H_2O}(P)

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

Q15·ChemistrySingle correctJEE Main 2024

The correct sequence of acidic strength of the following aliphatic acids in their decreasing order is:

\text{CH}_3\text{CH}_2\text{COOH}

\text{CH}_3\text{COOH}

\text{CH}_3\text{CH}_2\text{CH}_2\text{COOH}

\text{HCOOH}

(A) $\text{HCOOH}>\text{CH}_3\text{COOH}>\text{CH}_3\text{CH}_2\text{COOH}>\text{CH}_3\text{CH}_2\text{CH}_2\text{COOH}$
(B) $\text{HCOOH}>\text{CH}_3\text{CH}_2\text{CH}_2\text{COOH}>\text{CH}_3\text{CH}_2\text{COOH}>\text{CH}_3\text{COOH}$
(C) $\text{CH}_3\text{CH}_2\text{CH}_2\text{COOH}>\text{CH}_3\text{CH}_2\text{COOH}>\text{CH}_3\text{COOH}>\text{HCOOH}$
(D) $\text{CH}_3\text{COOH}>\text{CH}_3\text{CH}_2\text{COOH}>\text{CH}_3\text{CH}_2\text{CH}_2\text{COOH}>\text{HCOOH}$

Q16·ChemistryNumericalJEE Main 2024

Major product

B

of the following reaction has ___

\pi

-bonds. Ethylbenzene

\xrightarrow{KMnO_4-KOH,\ \Delta}(A)\xrightarrow{HNO_3/H_2SO_4}(B)

Q17·ChemistrySingle correctJEE Main 2024

Consider the given reaction, identify the major product P.

CH_3-COOH

undergoes (i)

LiAlH_4

(ii) PCC (iii)

HCN/^{-}OH

(iv)

H_2O/^{-}OH, \Delta

to give "P".

(A) $CH_3-CH_2-CH_2-OH$
(B) $CH_3-CH_2-CO-NH_2$
(C) $CH_3-CO-CH_2CH_3$
(D) $CH_3-CH(OH)-COOH$

Q18·ChemistrySingle correctJEE Main 2024

\text{CH}_3\text{CH}_2\text{OH}

is treated successively with (i) Jones' reagent, (ii)

\text{KMnO}_4

, (iii) NaOH, CaO,

\Delta

. Consider the above reaction sequence and identify the major product P.

(A)Methane
(B)Methanal
(C)Methoxymethane
(D)Methanoic acid

Q19·ChemistryNumericalJEE Main 2024

The product C in the following sequence of reactions has __________

\pi

bonds. Toluene

\xrightarrow{\text{KMnO}_4-\text{KOH},\,\Delta}

\xrightarrow{\text{H}_3\text{O}^+}

\xrightarrow{\text{Br}_2/\text{FeBr}_3}

Q20·ChemistrySingle correctJEE Main 2024

Benzene reacts with succinic anhydride in the presence of anhydrous

\text{AlCl}_3

(Friedel-Crafts acylation) to give (A). Compound (A), on Clemmensen reduction (Zn-Hg/HCl) followed by acidic work-up (

\text{H}^+

), gives (B). Identify (A) and (B) from the structures shown:

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

Q21·ChemistrySingle correctJEE Main 2024

The molecular formula of second homologue in the homologous series of mono carboxylic acids is _________.

(A) $C_2H_4O_2$
(B) $C_4H_8O_2$
(C) $CH_2O_2$
(D) $C_3H_6O_2$

Q22·ChemistryMultiple correctJEE Advanced 2023

In the following reactions,

\mathbf{P}

\mathbf{Q}

\mathbf{R}

, and

\mathbf{S}

are the major products. The correct statement(s) about

\mathbf{P}

\mathbf{Q}

\mathbf{R}

, and

\mathbf{S}

is(are)

(A) $\mathbf{P}$ and $\mathbf{Q}$ are monomers of polymers dacron and glyptal, respectively.
(B) $\mathbf{P}$ , $\mathbf{Q}$ , and $\mathbf{R}$ are dicarboxylic acids.
(C)Compounds $\mathbf{Q}$ and $\mathbf{R}$ are the same.
(D) $\mathbf{R}$ does not undergo aldol condensation and $\mathbf{S}$ does not undergo Cannizzaro reaction.

Q23·ChemistryMultiple correctJEE Advanced 2023

Consider the following reaction scheme and choose the correct option(s) for the major products Q, R and S.

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

Q24·ChemistrySingle correctJEE Main 2023

The major product 'P' formed in the following sequence of reactions (on the substrate shown) is: (i) SOCl

_2

; (ii) Benzene/AlCl

_3

; (iii) LiAlH

_4

; (iv) H

_3

^+

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

Q25·ChemistrySingle correctJEE Main 2023

The major product formed in the following reaction is:

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

Q26·ChemistrySingle correctJEE Main 2023

The descending order of acidity for the following carboxylic acids is: A.

CH_3COOH

F_3C\text{--}COOH

ClCH_2\text{--}COOH

FCH_2\text{--}COOH

BrCH_2\text{--}COOH

. Choose the correct answer from the options given below:

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

Q27·ChemistrySingle correctJEE Main 2023

In the given reaction, reagents 'X' and 'Y' respectively are:

(A) $(CH_3CO)_2O/H^+$ and $(CH_3CO)_2O/H^+$
(B) $CH_3OH/H^+,\ \Delta$ and $(CH_3CO)_2O/H^+$
(C) $CH_3OH/H^+,\ \Delta$ and $CH_3OH/H^+,\ \Delta$
(D) $(CH_3CO)_2O/H^+$ and $CH_3OH/H^+,\ \Delta$

Q28·ChemistryMultiple correctJEE Advanced 2022

Considering the reaction sequence given below, the correct statement(s) is(are)

(A) $\mathbf{P}$ can be reduced to a primary alcohol using $\mathrm{NaBH_4}$ .
(B)Treating $\mathbf{P}$ with conc. $\mathrm{NH_4OH}$ solution followed by acidification gives $\mathbf{Q}$ .
(C)Treating $\mathbf{Q}$ with a solution of $\mathrm{NaNO_2}$ in aq. HCl liberates $\mathrm{N_2}$ .
(D) $\mathbf{P}$ is more acidic than $\mathrm{CH_3CH_2COOH}$ .

Q29·ChemistryMultiple correctJEE Advanced 2022

Considering the following reaction sequence, the correct statement(s) is(are)

(A)Compound $\mathbf{P}$ and $\mathbf{Q}$ are carboxylic acids.
(B)Compound $\mathbf{S}$ decolorizes bromine water.
(C)Compounds $\mathbf{P}$ and $\mathbf{S}$ react with hydroxylamine to give the corresponding oximes.
(D)Compound $\mathbf{R}$ reacts with dialkylcadmium to give the corresponding tertiary alcohol.

Q30·ChemistrySingle correctJEE Main 2022

Find out the major product for the above reaction.

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

Q31·ChemistryNumericalJEE Main 2022

In the given reaction (Where Et is -

C_{2}H_{5}

) The number of chiral carbon/s in product A is

Q32·ChemistrySingle correctJEE Main 2022

Given below are two statements : Statement I : The esterification of carboxylic acid with an alcohol is a nucleophilic acyl substitution. Statement II : Electron withdrawing groups in the carboxylic acid will increase the rate of esterification reaction. Choose the most appropriate option :

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

Q33·ChemistrySingle correctJEE Main 2022

Two statements are given below : Statement I: The melting point of monocarboxylic acid with even number of carbon atoms is higher than that of with odd number of carbon atoms acid immediately below and above it in the series. Statement II : The solubility of monocarboxylic acids in water decreases with increase in molar mass. Choose the most appropriate option:

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

Q34·ChemistrySingle correctJEE Main 2021

In the following sequence of reactions a compound A, (molecular formula C

_{6}

_{12}

_{2}

) with a straight chain structure gives a C

_{4}

carboxylic acid. A is : A —[LiAlH

_{4}

/ H

_{3}

^{+}

]→ B —[Oxidation]→ C

_{4}

− carboxylic acid

(A)CH $_{3}$ – CH $_{2}$ – COO – CH $_{2}$ – CH $_{2}$ – CH $_{3}$
(B)CH $_{3}$ –CH $_{2}$ –CH(OH)–CH $_{2}$ –O–CH=CH $_{2}$
(C)CH $_{3}$ – CH $_{2}$ – CH $_{2}$ – COO – CH $_{2}$ – CH $_{3}$
(D)CH $_{3}$ – CH $_{2}$ – CH $_{2}$ – O – CH = CH – CH $_{2}$ – OH

Q35·ChemistrySingle correctJEE Main 2021

Given below are two statements : Statement I : Ethyl pent–4–yn–oate on reaction with CH

_{3}

MgBr gives a 3°–alcohol. Statement II : In this reaction one mole of ethyl pent–4–yn–oate utilizes two moles of CH

_{3}

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

Q36·ChemistrySingle correctJEE Main 2021

The major product formed in the following reaction is :

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

Q37·ChemistrySingle correctJEE Main 2021

Maleic anhydride can be prepared by:

(A)Heating cis-but-2-enedioic acid
(B)Treating cis-but-2-enedioic acid with alcohol and acid
(C)Heating trans- but-2- enedioic acid
(D)Treating trans-but-2-enedioic acid with alcohol and acid

Q38·ChemistrySingle correctJEE Main 2021

The correct order of their reactivity towards hydrolysis at room temperature is:

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

Q39·ChemistrySingle correctJEE Main 2021

Considering the above chemical reaction, identify the product "X" :

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

Q40·ChemistrySingle correctJEE Main 2021

Consider the above chemical reaction and identify product "A"

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

Q41·ChemistryNumericalJEE Main 2021

Consider the above reaction. The percentage yield of amide product is ______. (Round off to the Nearest Integer). (Given : Atomic mass : C : 12.0 u, H : 1.0u, N : 14.0 u, O : 16.0 u, Cl : 35.5 u)

Q42·ChemistrySingle correctJEE Main 2021

In the above reaction, the reagent "A" is :

(A)NaBH $_{4}$ , H $_{3}$ O $^{+}$
(B)LiAlH $_{4}$
(C)Alkaline KMnO $_{4}$ , H $^{+}$
(D)HCl, Zn-Hg

Q43·ChemistrySingle correctJEE Main 2021

The product "P" in the above reaction is :

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

Q44·ChemistrySingle correctJEE Main 2021

The correct order of acid character of the following compounds is : OHCOOHCOOHCOOH NO2CH3 IIIIIIIV

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

Q45·ChemistryNumericalJEE Main 2021

The number of compound/s given below which contain/s —COOH group is ______. (1) Sulphanilic acid (2) Picric acid (3) Aspirin (4) Ascorbic acid

Q46·ChemistrySingle correctJEE Main 2020

An organic compound (A) (molecular formula

\mathrm{C_6H_{12}O_2}

) was hydrolysed with dil.

\mathrm{H_2SO_4}

to give a carboxylic acid (B) and an alcohol (C). 'C' gives white turbidity immediately when treated with anhydrous

\mathrm{ZnCl_2}

and conc. HCl. The organic compound (A) is:

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

Q47·ChemistrySingle correctJEE Main 2020

[P] on treatment with

\mathrm{Br_2/FeBr_3}

\mathrm{CCl_4}

produced a single isomer

\mathrm{C_8H_7O_2Br}

while heating [P] with sodalime gave toluene. The compound [P] is:

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

Q48·ChemistrySingle correctJEE Main 2020

The most suitable reagent for the given conversion is :

(A)LiAlH $_{4}$
(B)B $_{2}$ H $_{6}$
(C)H $_{2}$ /Pd
(D)NaBH $_{4}$

Q49·ChemistrySingle correctJEE Main 2020

What is the product of following reaction? Hex − 3 − ynal

\xrightarrow[\text{(ii) PBr}_3\ \text{(iii) Mg/ether}\ \text{(iv) CO}_2\text{/H}_3\text{O}^+]{\text{(i) NaBH}_4}

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

Q50·ChemistryMultiple correctJEE Advanced 2019

Choose the correct option(s) for the following reaction sequence Consider Q, R and S as major products

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

Q51·ChemistrySingle correctJEE Advanced 2019

Answer the following by appropriately matching the lists based on the information given in the paragraph List-I includes starting materials and reagents of selected chemical reactions. List-II gives structures of compounds that may be formed as intermediate products and/or final products from the reactions of List-I. Which of the following options has the correct combination considering List-I and List-II?

LIST-I	LIST-II
I.see figure	P.see figure
II.see figure	Q.see figure
III.see figure	R.see figure
IV.see figure	S.see figure
	T.see figure
	U.see figure

(A)(II), (P), (S), (T)
(B)(II), (P), (S), (U)
(C)(I), (S), (Q), (R)
(D)(I), (Q), (T), (U)

Q52·ChemistrySingle correctJEE Main 2019

The major product of the following reaction is : (1) CrO

_3

(2) SOCl

_2

\Delta

(3)

\Delta

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

Q53·ChemistrySingle correctJEE Main 2019

The major product 'Y' in the following reaction is:-

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

Q54·ChemistrySingle correctJEE Main 2019

The major product of the following reaction is :

CH_3CH=CHCO_2CH_3 \xrightarrow{LiAlH_4}

(A) $CH_3CH_2CH_2CHO$
(B) $CH_3CH=CHCH_2OH$
(C) $CH_3CH_2CH_2CO_2CH_3$
(D) $CH_3CH_2CH_2CH_2OH$

Q55·ChemistrySingle correctJEE Main 2019

The increasing order of the reactivity of the following with LiAlH4 is :

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

Q56·ChemistrySingle correctJEE Main 2019

The decreasing order of ease of alkaline hydrolysis for the following ester is

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

Q57·ChemistrySingle correctJEE Main 2019

Which diccarboxylic acid in presence of a dehydrating agent is least reactive to give anhydride?

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

Q58·ChemistrySingle correctJEE Main 2019

The correct decreasing order for acidic strength is

(A)NO $_{2}$ CH $_{2}$ COOH > FCH $_{2}$ COOH > CNCH $_{2}$ COOH > ClCH $_{2}$ COOH
(B)FCH $_{2}$ COOH > NCCH $_{2}$ COOH > NO $_{2}$ CH $_{2}$ COOH > ClCH $_{2}$ COOH
(C)CNCH $_{2}$ COOH > O $_{2}$ NCH $_{2}$ COOH > FCH $_{2}$ COOH > ClCH $_{2}$ COOH
(D)NO $_{2}$ CH $_{2}$ COOH > NCCH $_{2}$ COOH > FCH $_{2}$ COOH > ClCH $_{2}$ COOH

Q59·ChemistrySingle correctJEE Main 2019

The major product of the following reaction is:

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

Q60·ChemistrySingle correctJEE Advanced 2018

PARAGRAPH "X" Treatment of benzene with CO/HCl in the presence of anhydrous

AlCl_{3}

/CuCl followed by reaction with

Ac_{2}O

/NaOAc gives compound X as the major product. Compound X upon reaction with

Br_{2}

Na_{2}CO_{3}

, followed by heating at 473 K with moist KOH furnishes Y as the major product. Reaction of X with

H_{2}

/Pd-C, followed by

H_{3}PO_{4}

treatment gives Z as the major product. (There are two questions based on PARAGRAPH "X", the question given below is one of them) The compound Y is

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

Q61·ChemistrySingle correctJEE Advanced 2018

PARAGRAPH "A" An organic acid P (

C_{11}H_{12}O_{2}

) can easily be oxidized to a dibasic acid which reacts with ethylene glycol to produce a polymer dacron. Upon ozonolysis, P gives an aliphatic ketone as one of the products. P undergoes the following reaction sequences to furnish R via Q. The compound P also undergoes another set of reactions to produce S. S

\xleftarrow{}

[1)

H_{2}

/Pd−C, 2)

NH_{3}

\Delta

, 3)

Br_{2}

/NaOH, 4)

CHCl_{3}

, KOH,

\Delta

, 5)

H_{2}

/Pd−C] P

\xrightarrow{}

[1)

H_{2}

/Pd−C, 2)

SOCl_{2}

, 3) MeMgBr,

CdCl_{2}

, 4)

NaBH_{4}

] Q

\xrightarrow{}

[1) HCl, 2) Mg/

Et_{2}O

, 3)

CO_{2}

(dry ice), 4)

H_{3}O^{+}

] R (There are two questions based on PARAGRAH 'A', the question given below is one of them) The compound R is

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

Q62·ChemistrySingle correctJEE Advanced 2016

The correct order of acidity for the following compounds is

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

Q63·ChemistrySingle correctJEE Advanced 2013

P and Q are isomers of dicarboxylic acid

\mathrm{C_4H_4O_4}

. Both decolorize

\mathrm{Br_2/H_2O}

. On heating, P forms the cyclic anhydride. Upon treatment with dilute alkaline

\mathrm{KMnO_4}

, P as well as Q could produce one or more than one from S, T and U. In the following reaction sequences V and W are, respectively

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

Q64·ChemistryIntegerJEE Advanced 2013

The total number of carboxylic acid groups in the product P is

Carboxylic Acids and Derivatives — frequently asked

How many questions from Carboxylic Acids and Derivatives appear in JEE?

Carboxylic Acids and Derivatives has appeared in 54 of the last 186 JEE Main and JEE Advanced papers — about 29% of them — contributing 64 questions in total across those papers.

Is Carboxylic Acids and Derivatives an important chapter for JEE?

Judged by how often it is actually tested, it appears in roughly 29% 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 Carboxylic Acids and Derivatives 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.

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