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2021 JEE PYQ

Get chapter-wise JEE Main & Advanced questions with solutions

Q JEE MAIN_2021_
Given below are two statements : Statement I : Penicillin is a bacteriostatic type antibiotic. Statement II : The general structure of Penicillin is: Choose...
JEE Main Chemistry Medium
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Q JEE-MAIN 2021
A 50 watt bulb emits monochromatic red light of wavelength of 795 nm. The number of photons emitted per second by the bulb is$...
JEE Main Chemistry Easy
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Q JEE MAIN 2021
In a Young's double slit experiment, the slits are separated by 0.3 mm and the screen is 1.5 m away from the plane of slits....
JEE Main Physics Easy
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Q JEE MAIN 2021
A particle is moving with constant acceleration ' $a$ '. Following graph shows $v^2$ versus $x$ (displacement) plot. The acceleration of the particle is $...
JEE Main Physics Easy
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Q JEE MAIN 2021
Consider a galvanometer shunted with $5 \Omega$ resistance and $2 \%$ of current passes through it. What is the resistance of the given galvanometer ?
JEE Main Physics Easy
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Q JEE MAIN 2021
Which refining process is generally used in the purification of low melting metals ?
JEE Main Chemistry Medium
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Q JEE-MAIN 2021
If 80 g of copper sulphate $\mathrm{CuSO}_4 \cdot 5 \mathrm{H}_2 \mathrm{O}$ is dissolved in deionised water to make 5 L of solution. The concentration of...
JEE Main Chemistry Easy
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Q JEE MAIN_2021_
To an aqueous solution containing ions such as $\mathrm{Al}^{3+}, \mathrm{Zn}^{2+}, \mathrm{Ca}^{2+}, \mathrm{Fe}^{3+}, \mathrm{Ni}^{2+}, \mathrm{Ba}^{2+}$ and $\mathrm{Cu}^{2+}$ was added conc. HCl , followed by $\mathrm{H}_2 \mathrm{~S}$....
JEE Main Chemistry Medium
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Q JEE MAIN 2021`
The molar solubility of $\mathrm{Zn}(\mathrm{OH})_2$ in 0.1 M NaOH solution is $x \times 10^{-18} \mathrm{M}$. The value of $x$ is $\_\_\_\_$ (Nearest integer) (Given :...
JEE Main Chemistry Easy
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Q JEE MAIN 2021
A mixture of hydrogen and oxygen has volume $500 \mathrm{~cm}^3$, temperature 300 K , pressure 400 kPa and mass 0.76 g.
The ratio of masses...
JEE Main Physics Easy
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