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2021 JEE PYQ

Get chapter-wise JEE Main & Advanced questions with solutions

Q JEE MAIN 2021
$\mathrm{CO}_2$ gas adsorbs on charcoal following Freundlich adsorption isotherm. For a given amount of charcoal, the mass of $\mathrm{CO}_2$ adsorbed becomes 64 times when the...
JEE Main Chemistry Easy
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Q JEE MAIN 2021
Consider two chemical reactions (A) and (B) that take place during metallurgical process :
(A) $\mathrm{ZnCO}_{3(\mathrm{~s})} \xrightarrow{\Delta} \mathrm{ZnO}_{(\mathrm{s})}+\mathrm{CO}_{2(\mathrm{~g})}$
(B) $...
JEE Main Chemistry Easy
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Q JEE MAIN 2021
The density of NaOH solution is $1.2 \mathrm{~g} \mathrm{~cm}^{-3}$. The molality of this solution is $\_\_\_\_$ m.
(Round off to the Nearest Integer)
...
JEE Main Chemistry Easy
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Q JEE MAIN 2021
Car B overtakes another car A at a relative speed of $40 \mathrm{~ms}^{-1}$. How fast will the image of car B appear to move in...
JEE Main Physics Easy
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Q JEE MAIN 2021
An automobile of mass ‘m’ accelerates starting from origin and initially at rest, while the engine supplies constant power P. The position is given as...
JEE Main Physics Hard
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Q JEE MAIN 2021
Given below are two statements : One is labelled as Assertion A and the other labelled as Reason R.
Assertion A : Lithium halides...
JEE Main Chemistry Easy
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Q JEE MAIN 2021
The single largest industrial application of dihydrogen is :
JEE Main Chemistry Easy
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Q JEE MAIN 2021
A physical quantity ‘y’ is represented by the formula $y=m^2 r^{-4} g^x l^{-\frac{3}{2}}$ . If the percentage errors found in y, m, r, I and...
JEE Main Physics Easy
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Q JEE MAIN 2021

The correct order of stability of given carbocation is :
JEE Main Chemistry Easy
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Q JEE MAIN 2021
The major product (P) in the following reaction is :
JEE Main Chemistry Easy
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