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2021 JEE PYQ

Get chapter-wise JEE Main & Advanced questions with solutions

Q JEE MAIN 2021
Which one among the following chemical tests is used to distinguish monosaccharide from disaccharide ?
JEE Main Chemistry Medium
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Q JEE MAIN 2021
A solid disc of radius 20 cm and mass 10 kg is rotating with an angular velocity of 600 rpm , about an axis normal...
JEE Main Physics Medium
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Q JEE-MAIN 2021
A capacitor is connected to a 20 V battery through a resistance of 10Ω. It is found that the potential difference across the capacitor rises...
JEE Main Physics Easy
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Q JEE MAIN 2021
Presence of which reagent will affect the reversibility of the following reaction, and change it to a irreversible reaction :
JEE Main Chemistry Easy
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Q JEE MAIN 2021
A force of $\mathrm{F}=(5 \mathrm{y}+20) \mathrm{j} \mathrm{N}$ acts on a particle. The workdone by this force when the particle is moved from $\mathrm{y}=0 \mathrm{~m}$ to...
JEE Main Physics Medium
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Q JEE MAIN 2021
Let $L$ be a common tangent line to the curves $4 x^2+9 y^2=36$ and $(2 x)^2+(2 y)^2=31$. Then the square of the slope of the...
JEE Main Mathematics Easy
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Q JEE-MAIN 2021
A mass of 5 kg is connected to a spring. The potential energy curve of the simple harmonic motion executed by the system is shown...
JEE Main Physics Easy
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Q JEE MAIN 2021
From the given data, the amount of energy required break the nucleus of aluminium ${ }_{13}^{27} \mathrm{Al}$ is $\_\_\_\_$ $x \times 10^{-3} \mathrm{~J}$.
Mass of...
JEE Main Physics Easy
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Q JEE MAIN 2021
Given below are two statements :
Statement I : Rutherford's gold foil experiment cannot explain the line spectrum of hydrogen atom.
Statement II...
JEE Main Chemistry Easy
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Q JEE-MAIN 2021
An object of mass 'm' is being moved with a constant velocity under the action of an applied force of 2N along a frictionless surface...
JEE Main Physics Easy
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