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2021 JEE PYQ

Get chapter-wise JEE Main & Advanced questions with solutions

Q JEE MAIN 2021
The major products formed in the following reaction sequence A and B are :
JEE Main Chemistry Easy
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Q JEE MAIN 2021
When 10 mL of an aqueous solution of $\mathrm{KMnO}_4$ was titrated in acidic medium, equal volume of 0.1 M of an aqueous solution of ferrous...
JEE Main Chemistry Medium
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Q JEE MAIN 2021
At very high frequencies, the effective impendance of the given circuit will be $\_\_\_\_$ $\Omega$.
JEE Main Physics Easy
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Q JEE MAIN 2021
Choose the correct statement from the following
JEE Main Chemistry Easy
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Q JEE MAIN_2021_
The dihedral angle in staggered form of Newman projection of 1,1,1-Trichloro ethane is $\_\_\_\_$ degree. (Round off to the nearest integer)
JEE Main Chemistry Easy
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Q JEE MAIN 2021
The number of moles of $\mathrm{NH}_3$, that must be added to 2 L of $0.80 \mathrm{M} \mathrm{AgNO}_3$ in order to reduce the concentration of $\mathrm{Ag}^{+}$ions...
JEE Main Chemistry Medium
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Q JEE MAIN 2021
Which one of the following when dissolved in water gives coloured solution in nitrogen atmosphere?
JEE Main Chemistry Hard
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Q JEE MAIN 2021
200 mL of 0.2 M HCl is mixed with 300 mL of 0.1 M NaOH . The molar heat of neutralization of this reaction is...
JEE Main Chemistry Hard
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Q JEE-MAIN 2021
Which one of the following compounds is not aromatic ?
JEE Main Chemistry Easy
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Q JEE MAIN_2021_
In a solvent 50\% of an acid HA dimerizes and the rest dissociates. The van't Hoff factor of the acid is $\_\_\_\_$ $\times 10^{-2}$. (Round...
JEE Main Chemistry Easy
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