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d and f Block Elements

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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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Q JEE MAIN 2022
The total number of $\mathrm{Mn}=\mathrm{O}$ bonds in $\mathrm{Mn}_2 \mathrm{O}_7$ is $\_\_\_\_$
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Q JEE MAIN 2022
Given below are two statements:
Statement I : Iron (III) catalyst, acidified $\mathrm{K}_2 \mathrm{Cr}_2 \mathrm{O}_7$ and neutral $\mathrm{KMnO}_4$ have the ability to oxidise I to$\mathrm{l}_2$...
JEE Main Chemistry Medium
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Q JEE MAIN 2022
A 10 g mixture of hydrogen and helium is contained in a vessel of capacity $0.0125 \mathrm{~m}^3$ at 6 bar and $27^{\circ} \mathrm{C}$. The mass...
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Q JEE-Main 2022
Among $\mathrm{Co}^{3+}, \mathrm{Ti}^{2+}, \mathrm{V}^{2+}$ and $\mathrm{Cr}^{2+}$ ions, one if used as a reagent cannot liberate $\mathrm{H}_2$ from dilute mineral acid solution, its spin-only magnetic moment...
JEE Main Physics Hard
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Q JEE MAIN 2022
The oxidation state of manganese in the product obtained in a reaction of potassium permanganate and hydrogen peroxide in basic medium is ______.
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Q JEE MAIN 2022
Which of the following has least tendency to liberate $\mathrm{H}_2$ from mineral acids?
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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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Q JEE MAIN 2022
The metal that is not extracted from its sulphide ore is :
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Q JEE MAIN 2022
In neutral or alkaline solution, $\mathrm{MnO}_4^{-}$ oxidises thiosulphate to:
JEE Main Chemistry Medium
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