JEE Main202324 Jan 2023Evening ShiftChemistryHydrogenActual
In which of the following reactions the hydrogen peroxide acts as a reducing agent?
Options
- APbS + 4 H 2 O 2 → PbSO 4 + 4 H 2 O
- B2 Fe 2 + + H 2 O 2 → 2 Fe 3 + + 2 OH -
- CHOCl + H 2 O 2 → H 3 O + + Cl - 1 + O 2
- DMn 2 + + H 2 O 2 → Mn 4 + + 2 OH -
Correct answer
C. HOCl + H 2 O 2 → H 3 O + + Cl - 1 + O 2
Step-by-step solution
PbS + 4 H 2 O 2 → PbSO 4 + 4 H 2 O In the above reaction lead sulphide oxidised to lead sulphate. Hence, hydrogen peroxide acts as oxidising agent. 2 Fe 2 + + H 2 O 2 → 2 Fe 3 + + 2 OH - In the above reaction Fe 2 + oxidised to Fe 3 + . Hence, hydrogen peroxide acts as oxidising agent. Mn 2 + + H 2 O 2 → Mn 4 + + 2 OH - In the above reaction Mn 2 + oxidised to Mn 4 + . Hence, hydrogen peroxide acts as oxidising agent. HOCl + H 2 O 2 → H 3 O + + Cl - 1 + O 2 In the above reaction Cl + 1 reduc