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...

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

A sample of 4.5 mg of an unknown monohydric alcohol, $\mathrm{R}-\mathrm{OH}$ was added to methylmagnesium iodide. A gas is evolved...

JEE Main Chemistry Hard

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Q JEE MAIN 2022

Chlorophyll extracted from the crushed green leaves was dissolved in water to make 2 L solution of Mg of concentration...

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...

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...

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,...

JEE Main Chemistry Easy

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