Hydrogen peroxide can act like an acid, oxidant, reductant, bleaching agent, antichlor and an antiseptic. The reaction from the following in which it acts like a reducing agent is

see full answer

21% of IItians & 23% of AIIMS delhi doctors are from Sri Chaitanya institute !!

An Intiative by Sri Chaitanya

${Mn}^{+ 2} + 2 H^{+} + H_{2} O_{2} \overset{}{\to} {Mn}^{+ 4} + 2 H_{2} O$

$2 {MnO}_{4}^{-} + 5 H_{2} O_{2} + 6 H^{+} \overset{}{\to} 2 {Mn}^{+ 2} + 8 H_{2} O + 5 O_{2}$

$H_{2} O_{2} + 2 H^{+} + 2 I^{-} \overset{}{\to} I_{2} + 2 H_{2} O$

$PbS$ + $4 H_{2} O_{2} \overset{}{\to} {PbSO}_{4} + 4 H_{2} O$

answer is C.

(Unlock A.I Detailed Solution for FREE)

Ready to Test Your Skills?

Check your Performance Today with our Free Mock Test used by Toppers!

Take Free Test

Detailed Solution

(1) $\overset{}{Pb \overset{- 2}{S}} \overset{}{\to} \overset{+ 6}{{PbSO}_{4}} . . . . . oxidation$

(2) ${Mn}^{+ 2} \overset{}{\to} {Mn}^{+ 4} . . . . . oxidation$

(3) $\overset{+ 7}{M} n O_{4}^{-} \overset{}{\to} {Mn}^{+ 2} . . . . . redution$

(4) $I^{-} \overset{}{\to} I_{2} . . . . . oxidation$

Watch 3-min video & get full concept clarity