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2020 JEE PYQ

Get chapter-wise JEE Main & Advanced questions with solutions

Q JEE MAIN 2020
250 mL of a waste solution obtained from the workshop of a goldsmith contains $0.1 \mathrm{M} \mathrm{AgNO}_3$ and 0.1 M AuCl . The solution was...
JEE Main Chemistry Easy
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Q JEE MAIN 2020
The elements with atomic numbers 101 and 104 belong to, respectively,
JEE Main Chemistry Easy
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Q JEE MAIN 2020
Consider the following reactions
JEE Main Chemistry Medium
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Q JEE MAIN 2020
An organic compound (A) (molecular formula $\mathrm{C}_6 \mathrm{H}_{12} \mathrm{O}_2$ ) was hydrolysed with dil. $\mathrm{H}_2 \mathrm{SO}_4$ to give a carboxylic acid (B) and an alcohol...
JEE Main Chemistry Medium
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Q JEE MAIN 2020
Five moles of an ideal gas at 1 bar and 298 K is expanded into vacuum to double the volume. The work done is
JEE Main Chemistry Easy
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Q JEE MAIN 2020
For one mole of an ideal gas, which of these statements must be true?
(a) U and H each depends only on temperature
(b) Compressibility...
JEE Main Chemistry Easy
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Q JEE MAIN 2020
A cylinder containing an ideal gas $(0.1 \mathrm{~mol}$ of 1.0 $\mathrm{dm}^3$ ) is in thermal equilibrium with a large volume of 0.5 molal aqueous solution...
JEE Main Chemistry Medium
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Q JEE MAIN 2020
JEE Main Chemistry Easy
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Q JEE MAIN 2020
What are the functional groups present in the structure of maltose?
JEE Main Chemistry Easy
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Q JEE MAIN 2020
The shortest wavelength of H atom in the Lyman series is $\lambda_1$. The longest wavelength in the Balmar series of $\mathrm{He}^{+}$is
JEE Main Chemistry Easy
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