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2025 JEE PYQ

Get chapter-wise JEE Main & Advanced questions with solutions

Q JEE MAIN 2025
Total enthalpy change for freezing of 1 mol of water at ${10^\circ}{\rm{C}}$ to ice at $ - {10^\circ }{\rm{C}}$ is
(Given: $...
JEE Main Chemistry Medium
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Q JEE MAIN 2025
Given below are two statements:
Statement I: Mohr's salt is composed of only three types of ions-ferrous, ammonium and sulfate.
Statement II: If the molar...
JEE Main Chemistry Easy
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Q JEE MAIN 2025
The group 14 elements A and B have the first ionisation enthalpy values of 708 and $715\;{\rm{kJ}}\;{\rm{mo}}{{\rm{l}}^{ - 1}}$ respectively. The above values are lowest...
JEE Main Chemistry Easy
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Q JEE MAIN 2025
Which of the following statements are correct, if the threshold frequency of caesium is $5.16 \times {10^{14}}\;{\rm{Hz}}$ ? JEE Main Chemistry Hard
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Q JEE MAIN 2025
An octahedral complex having molecular composition ${\rm{Co}}.5{\rm{N}}{{\rm{H}}_3} \cdot {\rm{C}}{{\rm{l}}^2}.{\rm{S}}{{\rm{O}}_4}$ has two isomers A and B. The solution of A gives a white precipitate with ${\rm{AgN}}{{\rm{O}}_3}$...
JEE Main Chemistry Easy
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Q JEE MAIN 2025
Which of the following amine (s) show (s) positive carbylamine test?
Choose the correct answer...
JEE Main Chemistry Easy
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Q JEE MAIN 2025
Match the LIST-I with LIST-I
Choose the correct answer from the options given below:
JEE Main Chemistry Easy
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Q JEE MAIN 2025
An aqueous solution of HCl with pH 1.0 is diluted by adding equal volume of water (ignoring dissociation of water). The pH of HCl solution...
JEE Main Chemistry Easy
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Q JEE MAIN 2025
The number of valence electrons present in the metal among ${\rm{Cr}},{\rm{Co}},{\rm{Fe}}$ and Ni which has the lowest enthalpy of atomisation is
JEE Main Chemistry Medium
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Q JEE MAIN 2025
Given below are two statements:
Statement I: Ozonolysis followed by treatment with ${\rm{Zn}},{{\rm{H}}_2}{\rm{O}}$ of cis-2-butene gives ethanal.
Statement II: The product obtained by ozonolysis followed...
JEE Main Chemistry Easy
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