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2020 JEE PYQ

Get chapter-wise JEE Main & Advanced questions with solutions

Q JEE MAIN 2020
In the sixth period, the orbitals that are filled are
JEE Main Chemistry Medium
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Q JEE MAIN 2020
Potassium chlorate is prepared by the electrolysis of KCl in basic solution. $$ 6 \mathrm{OH}^{-}+\mathrm{Cl}^{-} \rightarrow \mathrm{ClO}^{-}{ }_3+3 \mathrm{H}_2 \mathrm{O}+6 \mathrm{e}^{-} $$
If only $...
JEE Main Chemistry Medium
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Q JEE MAIN 2020
A beam of electrons of energy $E$ scatters from a target having atomic spacing of $1 \AA$. The first maximum intensity occurs at $\theta=60^{\circ}$. Then...
JEE Main Physics Hard
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Q JEE MAIN 2020
JEE Main Mathematics Medium
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Q JEE MAIN 2020
A compound microscope consists of an objective lens of focal length 1 cm and an eyepiece of focal length 5 cm with a separation of...
JEE Main Physics Medium
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Q JEE MAIN 2029
In a Young's double slit experiment, the slits are placed 0.320 mm apart. Light of wavelength $\lambda=500 \mathrm{~nm}$ is incident on the slits. I he...
JEE Main Physics Medium
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Q JEE MAIN 2020
A particle of mass $200 \mathrm{MeV} / \mathrm{c}^2$ collides with a hydrogen atom at rest. Soon after the collision the particle comes to rest, and...
JEE Main Physics Hard
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Q JEE MAIN 2020
Two concentric circular coils, $C_1$ and $C_2$ are placed in the XY plane. $\mathrm{C}_1$ has 500 turns, and a radius of $1 \mathrm{~cm} . \mathrm{C}_2$...
JEE Main Physics Hard
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Q JEE MAIN 2020
In an estimation of bromine by Carius method, 1.6 g of an organic compound gave 1.88 g of AgBr. The mass percentage of bromine in...
JEE Main Chemistry Medium
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Q JEE MAIN 2020
The set that contains atomic numbers of only transition elements, is
JEE Main Chemistry Medium
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