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2021 JEE PYQ

Get chapter-wise JEE Main & Advanced questions with solutions

Q JEE MAIN 2021
The correct order of following 3d metal oxides, according to their oxidation numbers is :
(a) $\mathrm{CrO}_3$ (b) $\mathrm{Fe}_2 \mathrm{O}_3$ (c) $\mathrm{MnO}_2$ (d) $...
JEE Main Chemistry Easy
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Q JEE MAIN_2021_
The value of the definite integral $\int_{\pi / 24}^{5 \pi / 24} \frac{d x}{1+\sqrt[3]{\tan 2 x}}$ is :
JEE Main Mathematics Medium
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Q JEE MAIN 2021
The vapour pressures of $A$ and $B$ at $25^{\circ} \mathrm{C}$ are 90 mm Hg and 15 mm Hg respectively. If $A$ and $B$ are mixed...
JEE Main Chemistry Easy
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Q JEE-MAIN 2021
For the given circuit, the power across zener diode is ............ mW.
JEE Main Physics Easy
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Q JEE MAIN 2021
A uniform chain of length 3 meter and mass 3 kg overhangs a smooth table with 2 meter laying on the table. If k is...
JEE Main Physics Easy
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Q JEE MAIN 2021 S2
Let $y=y(x)$ be the solution of the differential equation $\left(x-x^3\right) d y=\left(y+y x^2-3 x^4\right) d x, x>2$. If $y(3)=3$, then $y(4)$ is equal to:
JEE Main Mathematics Hard
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Q JEE MAIN 2021
Which purification technique is used for high boiling organic liquid compound (decomposes near its boiling point)?
JEE Main Chemistry Medium
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Q JEE MAIN 2021
Given below are two statements :
Srtatement II : Solubility of alkaline earth metal hydroxides in water increases down the group.
Statement I...
JEE Main Chemistry Easy
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Q JEE-MAIN 2021
A coil in the shape of an equilateral triangle of side 10 cm lies in a vertical plane between the pole pieces of permanent magnet...
JEE Main Physics Easy
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Q JEE MAIN 2021
Which one of the following statements for D.I. Mendeleeff, is incorrect?
JEE Main Chemistry Easy
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