In which of the following reaction does H2O2 acts as a reducing agent ?

Question

In which of the following reaction does H2O2 acts as a reducing agent ? (A) 2FeCl2+2HCl+H2O2 arrow 2FeCl3+2H2O (B) Cl2+H2O2 arrow 2HCl+O2 (C) 2HI+H2O2 arrow 2H2O+I2 (D) H2SO3+H2O2 arrow H2SO4+H2O

Tardigrade Admin · Accepted Answer

Reducing nature of H2O2 means it reduces other substance and itself gets oxidised by evolving O2 . In (a), Fe2 + gets oxidised to Fe+ 3 . In (b), Cl2 gets reduced to Cl- . In (c), I- gets oxidised to I2 In (d), S+ 4 gets oxidised to S+ 6

Q. In which of the following reaction does $H_{2} O_{2}$ acts as a reducing agent ?

$2 F e C l_{2} + 2 H Cl + H_{2} O_{2} \to 2 F e C l_{3} + 2 H_{2} O$

$C l_{2} + H_{2} O_{2} \to 2 H Cl + O_{2}$

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

$H_{2} S O_{3} + H_{2} O_{2} \to H_{2} S O_{4} + H_{2} O$

Reducing nature of $H_{2} O_{2}$ means it reduces other substance and itself gets oxidised by evolving $O_{2}$ .
In (a), $F e^{2 +}$ gets oxidised to $F e^{+ 3}$ .
In (b), $C l_{2}$ gets reduced to $C l^{-}$ .
In (c), $I^{-}$ gets oxidised to $I_{2}$
In (d), $S^{+ 4}$ gets oxidised to $S^{+ 6}$

Q. In which of the following reaction does H2​O2​ acts as a reducing agent ?

2FeCl2​+2HCl+H2​O2​→2FeCl3​+2H2​O

Cl2​+H2​O2​→2HCl+O2​

2HI+H2​O2​→2H2​O+I2​

H2​SO3​+H2​O2​→H2​SO4​+H2​O