What volume of the $0.1 \mathrm{~M} \mathrm{~KMnO}_4$ in $\mathrm{ml}$ will be required to react with $0.158 \mathrm{~gm}$ of $\mathrm{Na}_2 \mathrm{S}_2 \mathrm{O}_3$ $ \mathrm{S}_2 \mathrm{O}_3^{--}+\mathrm{MnO}_4^{-}+ \mathrm{H}_2 \mathrm{O} \rightarrow \mathrm{MnO}_2+\mathrm{SO}_4^{--}+\mathrm{OH}^{-} $

NEET UG CHEMISTRY MCQ: P-BLOCK ELEMENTS

1 Hard

1 of 1

Application +4 | -1

What volume of the

0.1 \mathrm{~M} \mathrm{~KMnO}_4

\mathrm{ml}

will be required to react with

0.158 \mathrm{~gm}

\mathrm{Na}_2 \mathrm{S}_2 \mathrm{O}_3

\mathrm{S}_2 \mathrm{O}_3^{--}+\mathrm{MnO}_4^{-}+ \mathrm{H}_2 \mathrm{O} \rightarrow \mathrm{MnO}_2+\mathrm{SO}_4^{--}+\mathrm{OH}^{-}

View answer and explanation

Correct option: B

26.7 ml

Option B (26.7 ml) is correct because the volume of

KMnO_4

required is calculated using stoichiometry and the balanced redox reaction.