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2021 JEE PYQ

Get chapter-wise JEE Main & Advanced questions with solutions

Q JEE-MAIN 2021
A peptide synthesized by the reactions of one molecule each of Glycine, Leucine, Aspartic acid and Histidine will have ________ peptide linkages
JEE Main Chemistry Easy
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Q _JEE MAIN_2021
Compound A gives D-Galactose and D-Glucose on hydrolysis. The compound A is:
JEE Main Chemistry Easy
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Q JEE-MAIN 2021
If the conductivity of mercury at $0^{\circ} \mathrm{C}$ is $1.07 \times 10^6 \mathrm{~S} \mathrm{~m}^{-1}$ and the resistance of a cell containing mercury is $0.243 \Omega$,...
JEE Main Chemistry Easy
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Q JEE MAIN 2021
A sample of gas with $\gamma=1.5$ is taken through an adiabatic process in which the volume is compressed from $1200 \mathrm{~cm}^3$ to $300 \mathrm{~cm}^3$. If...
JEE Main Physics Easy
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Q JEE MAIN 2021
If $\sum_{r=1}^{50} \tan ^{-1} \frac{1}{2 r^2}=P$, then the value of $\tan p$ is :
JEE Main Mathematics Medium
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Q JEE MAIN 2021

The correct statement about (A), (B), (C) and (D) is :
JEE Main Chemistry Medium
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Q JEE-MAIN 2021
The spin-only magnetic moment value of $\mathrm{B}_2^{+}$species is $\_\_\_\_$ $\times 10^{-2}$ BM. (Nearest integer)
$[$ Given: $\sqrt{3}=1.73]$
JEE Main Chemistry Easy
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Q JEE MAIN 2021
The diameter of a spherical bob is measured using a vernier callipers. 9 divisions of the main scale, in the vernier callipers, are equal to...
JEE Main Physics Medium
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Q JEE MAIN 2021
When a rubber ball is taken to a depth of $\_\_\_\_$ m in deep sea, its volume decreases by $0.5 \%$. (The bulk modulus of...
JEE Main Physics Easy
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Q JEE MAIN 2021
A block moving horizontally on a smooth surface with a speed of 40 m/s splits into two parts with masses in the ratio of 1:2....
JEE Main Physics Easy
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