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Some Basic Concepts of Chemistry

Get chapter-wise JEE Main & Advanced questions with solutions

Q JEE MAIN 2021
The number of atoms in 8 g of sodium is $\mathrm{x} \times 10^{23}$. The value of x is $\_\_\_\_$ (Nearest integer) [Given : $...
JEE Main Chemistry Easy
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Q JEE MAIN_2021_
The number of neutrons and electrons, respectively, present in the radioactive isotope of hydrogen is :-
JEE Main Chemistry Medium
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Q JEE MAIN 2022
116 g of a substance upon dissociation reaction, yields 7.5 g of hydrogen, 60g of oxygen and 48.5 g of carbon. Given that the atomic...
JEE Main Chemistry Medium
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Q JEE MAIN 2022
Metal deficiency defect is shown by $\mathrm{Fe}_{e 0.93} \mathrm{O}$. In the crystal, some $\mathrm{Fe}^{2+}$ cations are missing and loss of positive charge is compensated by...
JEE Main Chemistry Medium
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Q JEE MAIN 2023
A circular plate is rotating in horizontal plane, about an axis passing through its center and perpendicular to the plate, with an angular velocity ....
JEE Main Chemistry Easy
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