The number of mole of potassium salt,$i.e,{\rm{KH}}{{\rm{C}}_2}{{\rm{O}}_4}{\rm{.}}{{\rm{H}}_2}{{\rm{C}}_2}{{\rm{O}}_4}.2{{\rm{H}}_2}{\rm{O}}$ oxidised by one mole of permanganate ion is :

JEE CHEMISTRY MCQ: REDOX REACTIONS

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The number of mole of potassium salt,

i.e,\mathrm{KH}{\mathrm{C}_2}{\mathrm{O}_4}\mathrm{.}{\mathrm{H}_2}{\mathrm{C}_2}{\mathrm{O}_4}.2{\mathrm{H}_2}\mathrm{O}

oxidised by one mole of permanganate ion is :

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Correct option: D

5/4

Option D (

5/4

) is correct because it represents the number of moles of the potassium salt oxidized by one mole of permanganate ion based on the balanced redox reaction.

More Questions from REDOX REACTIONS

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The oxidation number of

\mathrm{H}

in sodium hydride is A reagent, which can decrease the oxidation number of an element, is called Consider the following decomposition reaction

2 \mathrm{KClO}_3 \longrightarrow 2 \mathrm{KCl}+3 \mathrm{O}_2

In the above reaction, Assertion (A):

\mathrm{HNO}_3

acts as oxidizing agent.

Reason (R): Oxidation no. of nitrogen is +5, no increase in oxidation no. beyond +5 can occur. The oxidation no. of

\mathrm{HNO}_3

can only decrease. Assertion :- Bromide ion is serving as a reducing agent in the reaction.

\mathrm{MnO}_4^{-}(\mathrm{aq})+\mathrm{Br}^{-}(\mathrm{aq})+\mathrm{H}_2 \mathrm{O} \longrightarrow 2 \mathrm{MnO}_2(\mathrm{aq})+\mathrm{BrO}_3^{-}(\mathrm{aq})+2 \mathrm{OH}^{-}(\mathrm{aq})

Reason :- Oxidation number of

\mathrm{Br}

increases from

-1

+5.

A substance, that by its sharp colour change indicates the completion of reaction is known as :