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JEE Main 2021 (Online) 24th February Evening Shift

Exam Held on Wed Feb 24 2021 09:30:00 GMT+0000 (Coordinated Universal Time)
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Chemistry

The correct order of the following compounds showing increasing tendency towards...
The incorrect statement among the following is :
In polymer Buna-S : 'S' stands for :
Given below are two statements : one is labelled as Assertion A and the other is...
Given below are two statements :<br><br>Statement I : The value of the parameter...
Which one of the following compounds is non-aromatic?
According to Bohr's atomic theory :<br><br>(A) Kinetic energy of electron is $$ ...
Most suitable salt which can be used for efficient clotting of blood will be :
Which one of the following carbonyl compounds cannot be prepared by addition of ...
The correct set from the following in which both pairs are in correct order of m...
What is the correct sequence of reagents used for converting nitrobenzene into m...
The calculated magnetic moments (spin only value) for species $${[FeC{l_4}]^{2 -...
<img src="https://imagex.cdn.examgoal.net/1kls4o1ed/30245714-bd72-4b53-b8cd-2842...
Math List - I with List - II.<br><br><table> <thead> <tr> <th></th> <t...
What is the correct order of the following elements with respect to their densit...
Match List - I and List - II.<br><br><table> <thead> <tr> <th></th> <t...
The correct shape and $$I - I - I$$ bond angles respectively in $$I_3^ - $$ ion ...
The diazonium salt of which of the following compounds will form a coloured dye ...
Match List - I and List - II.<br><br><img src="https://imagex.cdn.examgoal.net/1...
Match List - I with List - II.<br><br><table> <thead> <tr> <th></th> <...
The formula of a gaseous hydrocarbon which requires 6 times of its own volume of...
Among the following allotropic forms of sulphur, the number of allotropic forms,...
The solubility product of PbI<sub>2</sub> is 8.0 $$\times$$ 10<sup>$$-$$9</sup>....
1.86 g of aniline completely reacts to form acetanilide. 10% of the product is l...
The volume occupied by 4.75 g of acetylene gas at 50$$^\circ$$C and 740 mmHg pre...
Assuming ideal behaviour, the magnitude of log K for the following reaction at 2...
C<sub>6</sub>H<sub>6</sub> freezes at 5.5$$^\circ$$C. The temperature at which a...
Sucrose hydrolyses in acid solution into glucose and fructose following first or...
The magnitude of the change in oxidising power of the $$MnO_4^ - /M{n^{2 + }}$$ ...
The total number of amines among the following which can be synthesized by Gabri...

Mathematics

If a curve y = f(x) passes through the point (1, 2) and satisfies $$x {{dy} \ove...
For which of the following curves, the line $$x + \sqrt 3 y = 2\sqrt 3 $$ is the...
Let A and B be 3 $$\times$$ 3 real matrices such that A is symmetric matrix and ...
The value of the integral, $$\int\limits_1^3 {[{x^2} - 2x - 2]dx} $$, where [x] ...
Let a, b, c be in arithmetic progression. Let the centroid of the triangle with ...
Let a, b$$ \in $$R. If the mirror image of the point P(a, 6, 9) with respect to ...
For the system of linear equations:<br><br>$$x - 2y = 1,x - y + kz = - 2,ky + 4...
Let f(x) be a differentiable function defined on [0, 2] such that f'(x) = f'(2 $...
The negation of the statement <br><br>$$ \sim p \wedge (p \vee q)$$ is :
For the statements p and q, consider the following compound statements :<br><br>...
If $$n \ge 2$$ is a positive integer, then the sum of the series $${}^{n + 1}{C_...
Let f be a twice differentiable function defined on R such that f(0) = 1, f'(0) ...
Let $$f:R \to R$$ be defined as<br><br>$$f(x) = \left\{ {\matrix{ { - 55x,} &...
If P is a point on the parabola y = x<sup>2</sup> + 4 which is closest to the st...
The vector equation of the plane passing through the intersection<br/><br/> of t...
The angle of elevation of a jet plane from a point A on the ground is 60$$^\circ...
The probability that two randomly selected subsets of the set {1, 2, 3, 4, 5} ha...
A possible value of $$\tan \left( {{1 \over 4}{{\sin }^{ - 1}}{{\sqrt {63} } \ov...
If the curve y = ax<sup>2</sup> + bx + c, x$$ \in $$R, passes through the point ...
The area of the region : $$R = \{ (x,y):5{x^2} \le y \le 2{x^2} + 9\} $$ is :
Let a point P be such that its distance from the point (5, 0) is thrice the dist...
If the variance of 10 natural numbers 1, 1, 1, ....., 1, k is less than 10, then...
Let $$\lambda$$ be an integer. If the shortest distance between the lines x $$-$...
If a + $$\alpha$$ = 1, b + $$\beta$$ = 2 and $$af(x) + af\left( {{1 \over x}} \r...
If the area of the triangle formed by the positive x-axis, the normal and the ta...
Let $$i = \sqrt { - 1} $$. If $${{{{\left( { - 1 + i\sqrt 3 } \right)}^{21}}} \o...
For integers n and r, let $$\left( {\matrix{ n \cr r \cr } } \right)...
The number of the real roots of the equation $${(x + 1)^2} + |x - 5| = {{27} \ov...
The students S<sub>1</sub>, S<sub>2</sub>, ....., S<sub>10</sub> are to be divid...
The sum of first four terms of a geometric progression (G. P.) is $${{65} \over ...

Physics

In the given figure, a body of mass M is held between two massless springs, on a...
If the source of light used in a Young's double slit experiment is changed from ...
<img src="https://imagex.cdn.examgoal.net/1kls41ups/3a0420d4-5651-411e-89a4-8b37...
Figure shows a circuit that contains four identical resistors with resistance R ...
A particle is projected with velocity v<sub>0</sub> along x-axis. A damping forc...
An X-ray tube is operated at 1.24 million volt. The shortest wavelength of the p...
If one mole of an ideal gas at (P<sub>1</sub>, V<sub>1</sub>) is allowed to expa...
A body weights 49N on a spring balance at the north pole. What will be its weigh...
When a particle executes SHM, the nature of graphical representation of velocity...
The period of oscillation of a simple pendulum is $$T = 2\pi \sqrt {{L \over g}}...
A soft ferromagnetic material is placed in an external magnetic field. The magne...
Which of the following equations represents a travelling wave?
Given below are two statements :<br><br>Statement I : PN junction diodes can be ...
Two electrons each are fixed at a distance '2d'. A third charge proton placed at...
On the basis of kinetic theory of gases, the gas exerts pressure because its mol...
Match List - I with List - II.<br><br><table> <thead> <tr> <th></th> <...
A circular hole of radius $$\left( {{a \over 2}} \right)$$ is cut out of a circu...
Zener breakdown occurs in a p $$-$$ n junction having p and n both :
The de-Broglie wavelength of a proton and $$\alpha$$-particle are equal. The rat...
According to Bohr atom model, in which of the following transitions will the fre...
A uniform metallic wire is elongated by 0.04 m when subjected to a linear force ...
An electromagnetic wave of frequency 3 GHz enters a dielectric medium of relativ...
A cylindrical wire of radius 0.5 mm and conductivity 5 $$\times$$ 10<sup>7</sup>...
Two solids A and B of mass 1 kg and 2 kg respectively are moving with equal line...
The root mean square speed of molecules of a given mass of a gas at 27$$^\circ$$...
A series L-C-R circuit is designed to resonate at an angular frequency $$\omega$...
A signal of 0.1 kW is transmitted in a cable. The attenuation of cable is $$-$$5...
A point charge of +12$$\mu$$C is at a distance 6 cm vertically above the centre ...
Two cars are approaching each other at an equal speed of 7.2 km/hr. When they se...
A uniform thin bar of mass 6 kg and length 2.4 meter is bent to make an equilate...

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