JEE Main 18 March 2021 Shift 1 Question Paper

Question 1

The differential equation satisfied by the system of parabolas $y^{2} = 4a(x + a)$ is :

Accepted Answer

(C) $y\left(\dfrac{dy}{dx}\right)^{2} + 2x\left(\dfrac{dy}{dx}\right) - y = 0$

Answer

(A) $y\left(\dfrac{dy}{dx}\right)^{2} - 2x\left(\dfrac{dy}{dx}\right) - y = 0$

Answer

(B) $y\left(\dfrac{dy}{dx}\right)^{2} - 2x\left(\dfrac{dy}{dx}\right) + y = 0$

Answer

(D) $y\left(\dfrac{dy}{dx}\right) + 2x\left(\dfrac{dy}{dx}\right) - y = 0$

Question 2

The number of integral values of m so that the abscissa of point of intersection of lines $3x + 4y = 9$ and $y = mx + 1$ is also an integer, is :

Accepted Answer

(B) $2$

Answer

(A) $1$

Answer

(C) $3$

Answer

(D) $0$

Question 3

Let $(1 + x + 2x^{2})^{20} = a_{0} + a_{1}x + a_{2}x^{2} + ... + a_{40}x^{40}$. then $a_{1} + a_{3} + a_{5} + ... + a_{37}$ is equal to

Accepted Answer

(B) $2^{19}(2^{20} - 21)$

Answer

(A) $2^{20}(2^{20} - 21)$

Answer

(C) $2^{19}(2^{20} + 21)$

Answer

(D) $2^{20}(2^{20} + 21)$

Question 4

The solutions of the equation $\begin{vmatrix} 1+\sin^{2}x & \sin^{2}x & \sin^{2}x \ \cos^{2}x & 1+\cos^{2}x & \cos^{2}x \ 4\sin 2x & 4\sin 2x & 1+4\sin 2x \end{vmatrix} = 0,\left(0 < x < \piight)$, are

Accepted Answer

(D) $\dfrac{7\pi}{12}, \dfrac{11\pi}{12}$

Answer

(A) $\dfrac{\pi}{12}, \dfrac{\pi}{6}$

Answer

(B) $\dfrac{\pi}{6}, \dfrac{5\pi}{6}$

Answer

(C) $\dfrac{5\pi}{12}, \dfrac{7\pi}{12}$

Question 5

Choose the correct statement about two circles whose equations are given below :
$x^{2} + y^{2} - 10x - 10y + 41 = 0$
$x^{2} + y^{2} - 22x - 10y + 137 = 0$

Accepted Answer

(C) circles have only one meeting point

Answer

(A) circles have same centre

Answer

(B) circles have no meeting point

Answer

(D) circles have two meeting points

Question 6

Let $\alpha, \beta, \gamma$ be the real roots of the equation, $x^{3} + ax^{2} + bx + c = 0$, $(a, b, c \in R$ and $a, b 
eq 0)$. If the system of equations (in, u, v, w) given by $\alpha u + \beta v + \gamma w = 0$, $\beta u + \gamma v + \alpha w = 0$; $\gamma u + \alpha v + \beta w = 0$ has non-trivial solution, then the value of $\dfrac{a^{2}}{b}$ is

Accepted Answer

(B) $3$

Answer

(A) $5$

Answer

(C) $1$

Answer

(D) $0$

Question 7

The integral $\displaystyle\int \dfrac{(2x-1)\cos\sqrt{(2x-1)^{2}+5}}{\sqrt{4x^{2}-4x+6}}\,dx$ is equal to (where c is a constant of integration)

Accepted Answer

(A) $\dfrac{1}{2}\sin\sqrt{\left(2x-1\right)^{2}+5} + c$

Answer

(B) $\dfrac{1}{2}\cos\sqrt{\left(2x+1\right)^{2}+5} + c$

Answer

(C) $\dfrac{1}{2}\cos\sqrt{\left(2x-1\right)^{2}+5} + c$

Answer

(D) $\dfrac{1}{2}\sin\sqrt{\left(2x+1\right)^{2}+5} + c$

Question 8

The equation of one of the straight lines which passes through the point $(1,3)$ and makes an angles $	an^{-1}\left(\sqrt{2}ight)$ with the straight line, $y + 1 = 3\sqrt{2}\,x$ is

Accepted Answer

(A) $4\sqrt{2}x + 5y - \left(15 + 4\sqrt{2}\right) = 0$

Answer

(B) $5\sqrt{2}x + 4y - \left(15 + 4\sqrt{2}\right) = 0$

Answer

(C) $4\sqrt{2}x + 5y - 4\sqrt{2} = 0$

Answer

(D) $4\sqrt{2}x - 5y - \left(5 + 4\sqrt{2}\right) = 0$

Question 9

If $\lim_{x 	o 0} \dfrac{\sin^{-1}x - 	an^{-1}x}{3x^{3}}$ is equal to L, then the value of $(6L + 1)$ is

Accepted Answer

(D) $2$

Answer

(A) $\dfrac{1}{6}$

Answer

(B) $\dfrac{1}{2}$

Answer

(C) $6$

Question 10

A vector $\vec{a}$ has components $3p$ and $1$ with respect to a rectangular cartesian system. This system is rotated through a certain angle about the origin in the counter clockwise sense. If, with respect to new system, $\vec{a}$ has components $p + 1$ and $\sqrt{10}$, then a value of p is equal to:

Accepted Answer

(D) $-1$

Answer

(A) $1$

Answer

(B) $-\dfrac{5}{4}$

Answer

(C) $\dfrac{4}{5}$

Question 11

If the equation $a\left|z\right|^{2} + \overline{\alpha}z + \alpha\overline{z} + d = 0$ represents a circle where a,d are real constants then which of the following condition is correct ?

Accepted Answer

(B) $|\alpha|^{2} - ad > 0$ and $a \in R - \{0\}$

Answer

(A) $\left|\alphaight|^{2} - ad 
eq 0$

Answer

(C) $|\alpha|^{2} - ad \geq 0$ and $a \in R$

Answer

(D) $\alpha = 0$, $a, d \in R^{+}$

Question 12

For the four circles M, N, O and P, following four equations are given :
Circle M : $x^{2} + y^{2} = 1$
Circle N : $x^{2} + y^{2} - 2x = 0$
Circle O : $x^{2} + y^{2} - 2x - 2y + 1 = 0$
Circle P : $x^{2} + y^{2} - 2y = 0$
If the centre of circle M is joined with centre of the circle N, further centre of circle N is joined with centre of the circle O, centre of circle O is joined with the centre of circle P and lastly, centre of circle P is joined with centre of circle M, then these lines form the sides of a :

Accepted Answer

(B) Square

Answer

(A) Rhombus

Answer

(C) Rectangle

Answer

(D) Parallelogram

Question 13

If $\alpha, \beta$ are natural numbers such that $100^{\alpha} - 199\beta = (100)(100) + (99)(101) + (98)(102) + ..... + (1)(199)$, then the slope of the line passing through $(\alpha, \beta)$ and origin is :

Accepted Answer

(B) $550$

Answer

(A) $540$

Answer

(C) $530$

Answer

(D) $510$

Question 14

The real valued function $f\left(x\right) = \dfrac{\mathrm{cosec}^{-1}x}{\sqrt{x - \left[x\right]}}$, where $[x]$ denotes the greatest integer less than or equal to x, is defined for all x belonging to :

Accepted Answer

(B) all non-integers except the interval $[-1,1]$

Answer

(A) all reals except integers

Answer

(C) all integers except $0, -1, 1$

Answer

(D) all reals except the Interval $[-1,1]$

Question 15

$\dfrac{1}{3^{2}-1} + \dfrac{1}{5^{2}-1} + \dfrac{1}{7^{2}-1} + ... + \dfrac{1}{\left(201\right)^{2}-1}$ is equal to

Accepted Answer

(B) $\dfrac{25}{101}$

Answer

(A) $\dfrac{101}{404}$

Answer

(C) $\dfrac{101}{408}$

Answer

(D) $\dfrac{99}{400}$

Question 16

If the functions are defined as $f\left(x\right) = \sqrt{x}$ and $g\left(x\right) = \sqrt{1 - x}$, then what is the common domain of the following functions : $f + g$, $f - g$, $f/g$, $g/f$, $g - f$ where $(f \pm g)(x) = f(x) \pm g(x)$, $(f/g)(x) = \dfrac{f\left(x\right)}{g\left(x\right)}$

Accepted Answer

(C) $0 < x < 1$

Answer

(A) $0 \leq x \leq 1$

Answer

(B) $0 \leq x < 1$

Answer

(D) $0 < x \leq 1$

Question 17

If $f\left(xight) = \begin{cases} \dfrac{1}{\left|xight|} & ; \;\; \left|xight| \geq 1 \ ax^{2} + b & ; \;\; \left|xight| < 1 \end{cases}$ is differentiable at every point of the domain, then the values of a and b are respectively :

Accepted Answer

(D) $-\dfrac{1}{2}, \dfrac{3}{2}$

Answer

(A) $\dfrac{1}{2}, \dfrac{1}{2}$

Answer

(B) $\dfrac{1}{2}, -\dfrac{3}{2}$

Answer

(C) $\dfrac{5}{2}, -\dfrac{3}{2}$

Question 18

Let $A + 2B = \begin{bmatrix} 1 & 2 & 0 \ 6 & -3 & 3 \ -5 & 3 & 1 \end{bmatrix}$ and $2A - B = \begin{bmatrix} 2 & -1 & 5 \ 2 & -1 & 6 \ 0 & 1 & 2 \end{bmatrix}$. If Tr(A) denotes the sum of all diagonal elements of the matrix A, then Tr(A) $-$ Tr(B) has value equal to

Accepted Answer

(B) $2$

Answer

(A) $1$

Answer

(C) $0$

Answer

(D) $3$

Question 19

The sum of all the 4-digit distinct numbers that can be formed with the digits 1, 2, 2 and 3 is:

Accepted Answer

(A) $26664$

Answer

(B) $122664$

Answer

(C) $122234$

Answer

(D) $22264$

Question 20

The value of $3 + \cfrac{1}{4 + \cfrac{1}{3 + \cfrac{1}{4 + \cfrac{1}{3 + ...\infty}}}}$ is equal to

Accepted Answer

(A) $1.5 + \sqrt{3}$

Answer

(B) $2 + \sqrt{3}$

Answer

(C) $3 + 2\sqrt{3}$

Answer

(D) $4 + \sqrt{3}$

Question 21

The number of times the digit 3 will be written when listing the integers from 1 to 1000 is

Accepted Answer

300

Question 22

Let the plane $ax + by + cz + d = 0$ bisect the line joining the points $(4, -3, 1)$ and $(2, 3, -5)$ at the right angles. If a, b, c, d are integers, then the minimum value of $(a^{2} + b^{2} + c^{2} + d^{2})$ is

Accepted Answer

28

Question 23

The missing value in the following figure is

Accepted Answer

4

Question 24

Let $z_{1}, z_{2}$ be the roots of the equation $z^{2} + az + 12 = 0$ and $z_{1}, z_{2}$ form an equilateral triangle with origin. Then, the value of $|a|$ is

Accepted Answer

6

Question 25

The equation of the planes parallel to the plane $x - 2y + 2z - 3 = 0$ which are at unit distance from the point $(1, 2, 3)$ is $ax + by + cz + d = 0$. If $(b - d) = K(c - a)$, then the positive value of K is

Accepted Answer

4

Question 26

The mean age of 25 teachers in a school is 40 years. A teacher retires at the age of 60 years and a new teacher is appointed in his place. If the mean age of the teachers in this school now is 39 years, then the age (in years) of the newly appointed teacher is_.

Accepted Answer

35

Question 27

If $f\left(x\right) = \displaystyle\int \dfrac{5x^{8} + 7x^{6}}{\left(x^{2} + 1 + 2x^{7}\right)^{2}}\,dx, \left(x \geq 0\right), f\left(0\right) = 0$ and $f\left(1\right) = \dfrac{1}{K}$, then the value of K is

Accepted Answer

4

Question 28

A square ABCD has all its vertices on the curve $x^{2}y^{2} = 1$. The midpoints of its sides also lie on the same curve. Then, the square of area of ABCD is

Accepted Answer

80

Question 29

The number of solutions of the equation $\left|\cot x\right| = \cot x + \dfrac{1}{\sin x}$ in the interval $[0, 2\pi]$ is

Accepted Answer

1

Question 30

An oil drop of radius 2 mm with a density 3g cm$^{-3}$ is held stationary under a constant electric field 3.55 × 10$^{5}$ V m$^{-1}$ in the Millikan's oil drop experiment. What is the number of excess electrons that the oil drop will possess ? (consider g = 9.81 m/s$^{2}$)

Accepted Answer

(B) 1.73 × 10$^{10}$

Answer

(A) 48.8 × 10$^{11}$

Answer

(C) 17.3 × 10$^{10}$

Answer

(D) 1.73 × 10$^{12}$

Question 31

Match List–I with List–II.
List–I
(a) 10 km height over earth's surface
(b) 70 km height over earth's surface
(c) 180 km height over earth's surface
(d) 270 km height over earth's surface
List–II
(i) Thermosphere
(ii) Mesosphere
(iii) Stratosphere
(iv) Troposphere

Accepted Answer

(A) (a)–(iv), (b)–(iii), (c)–(ii), (d)–(i)

Answer

(B) (a)–(i), (b)–(iv), (c)–(iii), (d)–(ii)

Answer

(C) (a)–(iii), (b)–(ii), (c)–(i), (d)–(iv)

Answer

(D) (a)–(ii), (b)–(i), (c)–(iv), (d)–(iii)

Question 32

Imagine that the electron in a hydrogen atom is replaced by a muon (µ). The mass of muon particle is 207 times that of an electron and charge is equal to the charge of an electron. The ionization potential of this hydrogen atom will be :-

Accepted Answer

(B) 2815.2 eV

Answer

(A) 13.6 eV

Answer

(C) 331.2 eV

Answer

(D) 27.2 eV

Question 33

A plane electromagnetic wave of frequency 100 MHz is travelling in vacuum along the x-direction. At a particular point in space and time, $\vec{B} = 2.0 	imes 10^{-8}\hat{k}\,	ext{T}$. (where, $\hat{k}$ is unit vector along z-direction) What is $\vec{E}$ at this point ?

Accepted Answer

(C) 6.0 $\hat{j}$ V/m

Answer

(A) 0.6 $\hat{j}$ V/m

Answer

(B) 6.0 $\hat{k}$ V/m

Answer

(D) 0.6 $\hat{k}$ V/m

Question 34

A thin circular ring of mass M and radius r is rotating about its axis with an angular speed ω. Two particles having mass m each are now attached at diametrically opposite points. The angular speed of the ring will become :

Accepted Answer

(C) $\omega\dfrac{M}{M+2m}$

Answer

(A) $\omega\dfrac{M}{M+m}$

Answer

(B) $\omega\dfrac{M+2m}{M}$

Answer

(D) $\omega\dfrac{M-2m}{M+2m}$

Question 35

Four identical long solenoids A, B, C and D are connected to each other as shown in the figure. If the magnetic field at the center of A is 3T, the field at the center of C would be : (Assume that the magnetic field is confined with in the volume of respective solenoid).

Accepted Answer

(D) 1T

Answer

(A) 12T

Answer

(B) 6T

Answer

(C) 9T

Question 36

The time period of a simple pendulum is given by $T = 2\pi\sqrt{\dfrac{\ell}{g}}$ . The measured value of the length of pendulum is 10 cm known to a 1mm accuracy. The time for 200 oscillations of the pendulum is found to be 100 second using a clock of 1s resolution. The percentage accuracy in the determination of 'g' using this pendulum is 'x'. The value of 'x' to the nearest integer is:-

Accepted Answer

(B) 3%

Answer

(A) 2%

Answer

(C) 5%

Answer

(D) 4%

Question 37

A constant power delivering machine has towed a box, which was initially at rest, along a horizontal straight line. The distance moved by the box in time 't' is proportional to :-

Accepted Answer

(B) t$^{3/2}$

Answer

(A) t$^{2/3}$

Answer

(C) t

Answer

(D) t$^{1/2}$

Question 38

What will be the average value of energy along one degree of freedom for an ideal gas in thermal equilibrium at a temperature T ? (k$_{B}$ is Boltzmann constant)

Accepted Answer

(A) $\dfrac{1}{2}k_{B}T$

Answer

(B) $\dfrac{2}{3}k_{B}T$

Answer

(C) $\dfrac{3}{2}k_{B}T$

Answer

(D) $k_{B}T$

Question 39

A radioactive sample disintegrates via two independent decay processes having half lives $T_{1/2}^{(1)}$ and $T_{1/2}^{(2)}$ respectively. The effective half-life $T_{1/2}$ of the nuclei is :

Accepted Answer

(C) $T_{1/2} = \dfrac{T_{1/2}^{(1)}T_{1/2}^{(2)}}{T_{1/2}^{(1)} + T_{1/2}^{(2)}}$

Answer

(A) None of the above

Answer

(B) $T_{1/2} = T_{1/2}^{(1)} + T_{1/2}^{(2)}$

Answer

(D) $T_{1/2} = \dfrac{T_{1/2}^{(1)} + T_{1/2}^{(2)}}{T_{1/2}^{(1)} - T_{1/2}^{(2)}}$

Question 40

The P-V diagram of a diatomic ideal gas system going under cyclic process as shown in figure. The work done during an adiabatic process CD is (use γ = 1.4) :

Accepted Answer

(A) –500 J

Answer

(B) –400 J

Answer

(C) 400 J

Answer

(D) 200 J

Question 41

In Young's double slit arrangement, slits are separated by a gap of 0.5 mm, and the screen is placed at a distance of 0.5 m from them. The distance between the first and the third bright fringe formed when the slits are illuminated by a monochromatic light of 5890 Å is :-

Accepted Answer

(B) 1178 × 10$^{-6}$ m

Answer

(A) 1178 × 10$^{-9}$ m

Answer

(C) 1178 × 10$^{-12}$ m

Answer

(D) 5890 × 10$^{-7}$ m

Question 42

A particle is travelling 4 times as fast as an electron. Assuming the ratio of de-Broglie wavelength of a particle to that of electron is 2 : 1, the mass of the particle is :-

Accepted Answer

(D) $\dfrac{1}{8}$ times the mass of e$^{-}$

Answer

(A) $\dfrac{1}{16}$ times the mass of e$^{-}$

Answer

(B) 8 times the mass of e$^{-}$

Answer

(C) 16 times the mass of e$^{-}$

Question 43

The position, velocity and acceleration of a particle moving with a constant acceleration can be represented by :

Accepted Answer

(B) (2)

Answer

(A) (1)

Answer

(C) (3)

Answer

(D) (4)

Question 44

In the experiment of Ohm's law, a potential difference of 5.0 V is applied across the end of a conductor of length 10.0 cm and diameter of 5.00 mm. The measured current in the conductor is 2.00 A. The maximum permissible percentage error in the resistivity of the conductor is :-

Accepted Answer

(A) 3.9

Answer

(B) 8.4

Answer

(C) 7.5

Answer

(D) 3.0

Question 45

In a series LCR resonance circuit, if we change the resistance only, from a lower to higher value :

Accepted Answer

(A) The bandwidth of resonance circuit will increase.

Answer

(B) The resonance frequency will increase.

Answer

(C) The quality factor will increase.

Answer

(D) The quality factor and the resonance frequency will remain constant.

Question 46

An AC source rated 220 V, 50 Hz is connected to a resistor. The time taken by the current to change from its maximum to the rms value is :

Accepted Answer

(A) 2.5 ms

Answer

(B) 25 ms

Answer

(C) 2.5 s

Answer

(D) 0.25 ms

Question 47

Your friend is having eye sight problem. She is not able to see clearly a distant uniform window mesh and it appears to her as non-uniform and distorted. The doctor diagnosed the problem as :

Accepted Answer

(B) Myopia with Astigmatism

Answer

(A) Astigmatism

Answer

(C) Presbyopia with Astigmatism

Answer

(D) Myopia and hypermetropia

Question 48

A loop of flexible wire of irregular shape carrying current is placed in an external magnetic field. Identify the effect of the field on the wire.

Accepted Answer

(A) Loop assumes circular shape with its plane normal to the field.

Answer

(B) Loop assumes circular shape with its plane parallel to the field.

Answer

(C) Wire gets stretched to become straight.

Answer

(D) Shape of the loop remains unchanged.

Question 49

The time period of a satellite in a circular orbit of radius R is T. The period of another satellite in a circular orbit of radius 9R is :

Accepted Answer

(B) 27 T

Answer

(A) 9 T

Answer

(C) 12 T

Answer

(D) 3 T

Question 50

A particle performs simple harmonic motion with a period of 2 second. The time taken by the particle to cover a displacement equal to half of its amplitude from the mean position is $\dfrac{1}{a}$ s. The value of 'a' to the nearest integer is _______ .

Accepted Answer

6

Question 51

The circuit shown in the figure consists of a charged capacitor of capacity 3 µF and a charge of 30 µC. At time t = 0, when the key is closed, the value of current flowing through the 5 MΩ resistor is 'x' µ-A. The value of 'x to the nearest integer is _______.

Accepted Answer

2

Question 52

The voltage across the 10Ω resistor in the given circuit is x volt. The value of 'x' to the nearest integer is _____.

Accepted Answer

70

Question 53

Two separate wires A and B are stretched by 2 mm and 4 mm respectively, when they are subjected to a force of 2 N. Assume that both the wires are made up of same material and the radius of wire B is 4 times that of the radius of wire A. The length of the wires A and B are in the ratio of a : b. Then a/b can be expressed as 1/x where x is _______ .

Accepted Answer

32

Question 54

A person is swimming with a speed of 10 m/s at an angle of 120° with the flow and reaches to a point directly opposite on the other side of the river. The speed of the flow is 'x' m/s. The value of 'x' to the nearest integer is ______.

Accepted Answer

5

Question 55

A parallel plate capacitor has plate area 100 m$^{2}$ and plate separation of 10 m. The space between the plates is filled up to a thickness 5 m with a material of dielectric constant of 10. The resultant capacitance of the system is 'x' pF. The value of ε$_{0}$ = 8.85 × 10$^{-12}$ F.m$^{-1}$. The value of 'x' to the nearest integer is_____.

Accepted Answer

161

Question 56

A ball of mass 10 kg moving with a velocity $10\sqrt{3}$ m/s along the x-axis, hits another ball of mass 20 kg which is at rest. After the collision, first ball comes to rest while the second ball disintegrates into two equal pieces. One piece starts moving along y-axis with a speed of 10 m/s. The second piece starts moving at an angle of 30° with respect to the x-axis. The velocity of the ball moving at 30° with x-axis is x m/s. The configuration of pieces after collision is shown in the figure below. The value of x to the nearest integer is _______ .

Accepted Answer

20

Question 57

As shown in the figure, a particle of mass 10 kg is placed at a point A. When the particle is slightly displaced to its right, it starts moving and reaches the point B. The speed of the particle at B is x m/s. (Take g = 10 m/s$^{2}$) The value of 'x' to the nearest integer is_____.

Accepted Answer

10

Question 58

An npn transistor operates as a common emitter amplifier with a power gain of 10$^{6}$. The input circuit resistance is 100Ω and the output load resistance is 10 KΩ. The common emitter current gain 'β' will be ______. (Round off to the Nearest Integer)

Accepted Answer

100

Question 59

A bullet of mass 0.1 kg is fired on a wooden block to pierce through it, but it stops after moving a distance of 50 cm into it. If the velocity of bullet before hitting the wood is 10 m/s and it slows down with uniform deceleration, then the magnitude of effective retarding force on the bullet is 'x' N. The value of 'x' to the nearest integer is ______ .

Accepted Answer

10

Question 60

Considering the above reaction, X and Y respectively are :

Accepted Answer

(B) (2)

Answer

(A) (1)

Answer

(C) (3)

Answer

(D) (4)

Question 61

The ionic radius of Na$^{+}$ ions is 1.02 Å. The ionic radii (in Å) of Mg$^{2+}$ and Al$^{3+}$, respectively, are-

Accepted Answer

(B) 0.72 and 0.54

Answer

(A) 1.05 and 0.99

Answer

(C) 0.85 and 0.99

Answer

(D) 0.68 and 0.72

Question 62

Reaction of Grignard reagent, C$_{2}$H$_{5}$MgBr with C$_{8}$H$_{8}$O followed by hydrolysis gives compound "A" which reacts instantly with Lucas reagent to give compound B, C$_{10}$H$_{13}$Cl.
The Compound B is :

Accepted Answer

(C) (3)

Answer

(A) (1)

Answer

(B) (2)

Answer

(D) (4)

Question 63

Reagent, 1-naphthylamine and sulphanilic acid in acetic acid is used for the detection of

Accepted Answer

(D) NO$_{2}^{-}$

Answer

(A) N$_{2}$O

Answer

(B) NO$_{3}^{-}$

Answer

(C) NO

Question 64

A non-reducing sugar "A" hydrolyses to give two reducing mono saccharides. Sugar A is-

Accepted Answer

(D) Sucrose

Answer

(A) Fructose

Answer

(B) Galactose

Answer

(C) Glucose

List-I (Class of Drug)	List-II (Example)
a.Antacid	i.Novestrol
b.Artificial sweetener	ii.Cimetidine
c.Antifertility	iii.Valium
d.Tranquilizers	iv.Alitame

List-I	List-II
a.Chlorophyll	i.Ruthenium
b.Vitamin-B $_{12}$	ii.Platinum
c.Anticancer drug	iii.Cobalt
d.Grubbs catalyst	iv.Magnesium

List-I (Chemicals)	List-II (Use / Preparation / Constituent)
a.Alcoholic potassium hydroxide	i.Electrodes in batteries
b.Pd/ BaSO $_{4}$	ii.Obtained by addition reaction
c.BHC (Benzene hexachloride)	iii.Used for β - elimination reaction
d.Polyacetylene	iv.Lindlar's catalyst

List-I	List-II
a.Ca(OCl) $_{2}$	i.Antacid
b.CaSO $_{4}$ . $\frac{1}{2}$ H $_{2}$ O	ii.Cement
c.CaO	iii.Bleach
d.CaCO $_{3}$	iv.Plaster of paris

List-I (process)	List-II (catalyst)
a.Deacron's process	i.ZSM-5
b.Contact process	ii.CuCl $_{2}$
c.Cracking of hydrocarbons	iii.Particles 'Ni'
d.Hydrogenation of vegetable oils	iv.V $_{2}$ O $_{5}$

JEE Main 18 March 2021 Shift 1 Question Paper with Answers

Physics — JEE Main 18 March 2021 Shift 1

Chemistry — JEE Main 18 March 2021 Shift 1

Mathematics — JEE Main 18 March 2021 Shift 1

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