KCET2015ChemistryElectrochemistry
( H ₂ O ₂ ) cannot oxidise
Options
- APbS
- B( Na ₂ SO ₃ )
- C( O₃ )
- D( K I )
Correct answer
C. ( O₃ )
Step-by-step solution
( H ₂ O ₂ ) oxidizes ( Na ₂ SO ₃ ) to ( Na ₂ SO ₄ KI ) to ( I ₂ ) and ( PbS ) to ( PbSO ₄ ) But, does not reduces ( O ₃ ) to ( O ₂ ) because both are allotropes so, there are no change in oxidation number occurs ( H ₂ O ₂+ O ₃ H ₂ O +2 O ₂ )