Redox Reaction · Chemistry · WB JEE

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MCQ (Single Correct Answer)

WB JEE 2023
The equivalent weight of KIO$$_3$$ in the given reaction is (M = molecular mass): $$\mathrm{2Cr{(OH)_3} + 4O{H^ - } + KI{O_3} \to 2CrO_4^{2 - } + 5{H_...
WB JEE 2022
Oxidation states of Cr in K2Cr2O7 and CrO5 are respectively
WB JEE 2021
A given amount of Fe2+ is oxidised by x mol of $$MnO_4^ - $$ in acidic medium. The number of moles of $$C{r_2}O_7^{2 - }$$ required to oxidise the sam...
WB JEE 2017
0.126 g of an acid is needed to completely neutralise 20 mL 0.1 (N) NaOH solution. The equivalent weight of the acid is
WB JEE 2017
You are supplied with 500 mL each of 2N HCl and 5N HCl. What is the maximum volume of 3M HCl that you can prepare using only these two solutions?
WB JEE 2017
What will be the normality of the salt solution obtained by neutralising x mL y (N) HCl with y mL x(N) NaOH, and finally adding (x + y) mL distilled w...

MCQ (More than One Correct Answer)

WB JEE 2021
N2H4 and H2O2 show similarity in
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