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2020 JEE PYQ

Get chapter-wise JEE Main & Advanced questions with solutions

Q JEE MAIN 2020
For all twice differentiable functions f : R → R, with f(0) = f(1) = f′(0) = 0,
JEE Main Mathematics Hard
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Q JEE MAIN 2020
A diatomic molecule $X_2$ has a body-centred cubic (bcc) structure with a cell edge of 300 pm . The density of the molecule is $...
JEE Main Chemistry Easy
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Q JEE MAIN 2020
A ray of light coming from the point $(2,2 \sqrt{3})$ is incident at an angle $30^{\circ}$ on the line $x=1$ at the point A. The...
JEE Main Mathematics Hard
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Q JEE MAIN 2020
Consider the following reaction :
$\mathrm{N}_2 \mathrm{O}_4(\mathrm{~g}) \rightleftharpoons 2 \mathrm{NO}_2(\mathrm{~g}) ; \Delta \mathrm{H}^0=+58 \mathrm{~kJ}$
For each of the following cases (a, b), the direction in...
JEE Main Chemistry Medium
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Q JEE MAIN 2020
Consider the statement: "For an integer n , if $\mathrm{n}^3-1$ is even, then n is odd." The contrapositive statement of this statement is :
JEE Main Mathematics Easy
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Q JEE MAIN 2020
The general solution of the differential equation $\sqrt{1+x^2+y^2+x^2 y^2}+x y \frac{d y}{d x}=0$ is : (where C is a constant of integration)
JEE Main Mathematics Hard
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Q JEE MAIN 2020
JEE Main Mathematics Hard
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Q JEE MAIN 2020
In the following reaction sequence the major products A and B are:
JEE Main Chemistry Medium
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Q JEE MAIN 2020
The shortest distance between the lines $\frac{x-1}{0}=\frac{y+1}{-1}=\frac{z}{1}$ and $x+y+z+1=0,2 x-y+z+3=0$ is :
JEE Main Mathematics Easy
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Q JEE MAIN 2020
A flask contains a mixture of compounds A and B. Both compounds decompose by first-order kinetics. The half-lives for A and B are 300 s...
JEE Main Chemistry Medium
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