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2025 JEE PYQ

Get chapter-wise JEE Main & Advanced questions with solutions

Q JEE MAIN 2025
In Dumas' method for estimation of nitrogen 1 g of an organic compound gave 150 mL of nitrogen collected at 300 K temperature and 900...
JEE Main Chemistry Medium
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Q JEE MAIN 2025
Given below are two statements:
Statement I: Nitrogen forms oxides with +1 to +5 oxidation states due to the formation of $p\pi - p\pi $...
JEE Main Chemistry Easy
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Q JEE MAIN 2025
One mole of an ideal gas expands isothermally and reversibly from $10{\rm{d}}{{\rm{m}}^3}$ to $20{\rm{d}}{{\rm{m}}^3}$ at 300 K. $\Delta {\rm{U}},{\rm{q}}$ and work done in the process...
JEE Main Chemistry Easy
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Q JEE MAIN 2025
Which of the following molecule(s) show/s paramagnetic behavior?
A. ${{\rm{O}}_2}$
B. ${{\rm{N}}_2}$
C. ${{\rm{F}}_2}$
D. ${{\rm{S}}_2}$
E. ${\rm{C}}{{\rm{l}}_2}$
Choose the correct answer from the options...
JEE Main Chemistry Easy
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Q JEE MAIN 2025
Given below are two statements.
Statement I: The dipole moment of $\mathop {{\rm{C}}{{\rm{H}}_3}}\limits^4 - \mathop {{\rm{CH}}}\limits^3 = \mathop {{\rm{CH}}}\limits^2 - \mathop {{\rm{CH}}}\limits^1 = {\rm{O}}$ is...
JEE Main Chemistry Easy
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Q JEE MAIN 2025
Benzene is treated with oleum to produce compound (X) which when further heated with molten sodium hydroxide followed by acidification produces compound (Y). The compound...
JEE Main Chemistry Easy
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Q JEE MAIN 2025
Given below are the pairs of group 13 elements showing their relation in terms of atomic radius.
$...
JEE Main Chemistry Medium
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Q JEE MAIN 2025
Which one of the following about an electron occupying the 1 s orbital in a hydrogen atom is incorrect? (Bohr's radius is represented by ${{\rm{a}}_0}$)
JEE Main Chemistry Easy
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Q JEE MAIN 2025
XY is the membrane/partition between two chambers 1 and 2 containing sugar solutions of concentration ${{\rm{c}}_1}$ and ${{\rm{c}}_2}\left( {{{\rm{c}}_1} > {{\rm{c}}_2}} \right){\rm{mol}}{{\rm{L}}^{ - 1}}$ ....
JEE Main Chemistry Medium
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Q JEE MAIN 2025
Aldol condensation is a popular and classical method to prepare $\alpha ,\beta $ -unsaturated carbonyl compounds. This reaction can be both intermolecular and intramolecular. Predict...
JEE Main Chemistry Medium
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