2021 JEE PYQ

Get chapter-wise JEE Main & Advanced questions with solutions

Q JEE MAIN 2021

Two Carnot engines A and B operate in series such that engine A absorbs heat at $\mathrm{T}_1$ and rejects heat to a sink at temperature...

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Q JEE MAIN 2021

A light beam of wavelength 500 nm is incident on a metal having work function of 1.25 eV , placed in a magnetic field of...

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Q JEE MAIN 2021

If ${ }^n P_r={ }^n P_{r+1}$ and ${ }^n C_r={ }^n C_{r+1}$, then the value of $r$ is equal to:

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Q JEE MAIN 2021

Given below are two statements :
Statement I : Aniline is less basic than acetamide.
Statement II : In aniline, the lone pair...

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Q JEE MAIN 2021

A system consists of two types of gas molecules $A$ and $B$ having same number density $2 \times 10^{25} / \mathrm{m}^3$. The diameter of $A$...

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Q JEE-MAIN 2021

A glass tumbler having inner depth of 17.5 cm is kept on a table. A student starts pouring water (μ = 4/3) into it while...

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Q JEE MAIN 2021

A simple pendulum of mass ‘m’ length ‘l’ and charge ‘+q’ suspended in the electric field produced by two conducting parallel plates as shown. The...

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Q JEE MAIN 2021

Let the equation of the pair of lines, $y=p x$ and $y=q x$, can be written as $(y-p x)(y-q x)=0$. Then the equation of the...

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Q JEE MAIN 2021

For a reaction of order n, the unit of the rate constant is :

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Q JEE-MAIN 2021

Following plots show Magnetization (M) vs Magnetising field (H) and Magnetic susceptibility (χ) vs temperature (T) graph :

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