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d and f Block Elements

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Q JEE MAIN 2021
Which one of the following lanthanoids does not form $\mathrm{MO}_2$ ? [ M is lanthanoid metal]
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Q JEE MAIN 2021
On treating a compound with warm dil. $\mathrm{H}_2 \mathrm{SO}_4$, gas X is evolved which turns $\mathrm{K}_2 \mathrm{Cr}_2 \mathrm{O}_7$ paper acidified with dil. $\mathrm{H}_2 \mathrm{SO}_4$ to...
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Q JEE MAIN 2021
The electrode potential of $\mathrm{M}^{2+} / \mathrm{M}$ of 3d-series elements shows positive value of :
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Q JEE MAIN 2021
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Q JEE MAIN 2021
The major components in "Gun Metal" are :
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Q JEE MAIN 2021
Match List-I with List-II :
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Q JEE MAIN 2021
Given below are two statement: one is labelled as Assertion A and the other is labelled as Reason R ;
Assertion A ; Size of...
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Q JEE MAIN 2021
Ellingham diagram is a graphical representation of:
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Q JEE MAIN 2021
Given below are two statements:
Statement I: $\mathrm{CeO}_2$ can be used for oxidation of aldehydes and ketones.
Statement 11 : Aqueous solution of...
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Q JEE MAIN 2022
The products obtained from a reaction of hydrogen peroxide and acidified potassium permanganate are
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