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QJEE MAIN 2022
The metal that is not extracted from its sulphide ore is :
JEE MainChemistryEasy
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QJEE MAIN 2022
The metal that has very low melting point and its periodic position is closer to a metalloid is :
JEE MainPhysicsEasy
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QJEE MAIN 2022
Match List-I with List-II.
Choose the correct answer from the option given below:
JEE MainChemistryEasy
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QJEE MAIN 2022
Let $K_1$ and $K_2$ be the maximum kinetic energies of photo-electrons emitted when two monochromatic beams of wavelength $\lambda_1$ and $\lambda_2$, respectively are incident on...
JEE MainPhysicsMedium
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QJEE MAIN 2022
Given below are two statements : one is labelled as Assertion A and the other is labelled as Reason R. Assertion A : Finest gold...
JEE MainChemistryEasy
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QJEE MAIN 2022
In the presence of sunlight, benzene reacts with $
\mathrm{Cl}_2
$ to give product, X. The number of hydrogens in X is_________.
JEE MainChemistryEasy
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QJEE MAIN 2022
At $30^{\circ} \mathrm{C}$, the half life for the decomposition of $\mathrm{AB}_2$ is 200 s and is independent of the initial concentration of $A B_2$. The...
JEE MainChemistryEasy
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QJEE MAIN 2022
Dinitrogen is a robust compound, but reacts at high altitude to form oxides. The oxide of nitrogen that can damage plant leaves and retard photosynthesis...
JEE MainChemistryEasy
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QJEE MAIN 2022
The difference between spin only magnetic moment values of $\left[\mathrm{Co}\left(\mathrm{H}_2 \mathrm{O}\right)_3\right]_{\mathrm{Cl}}$ and $\left[\mathrm{Cr}_2\left(\mathrm{H}_2 \mathrm{O}\right)_3\right]_{\mathrm{l}} \mathrm{Cl}_3$ is $\_\_\_\_$ .
JEE MainChemistryEasy
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QJEE MAIN 2022
Class XII students were asked to prepare one litre of buffer solution of pH 8.26 by their chemistry teacher. The amount of ammonium chloride to...
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