AP EAMCET2001ChemistryHydrogen
In which of the following reactions, H ₂ O ₂ acts as a reducing reagent?
Options
- APbO ₂(s)+ H ₂ O ₂(a q) PbO (s)+ H ₂ O (l)+ O ₂(g)
- BNa ₂ SO ₃(a q)+ H ₂ O ₂(a q) Na ₂ SO ₄(a q)+ H ₂ O (l)
- C2 KI (a q)+ H ₂ O ₂(a q) 2 KOH (a q)+ I ₂(s)
- DKNO ₂(a q)+ H ₂ O ₂(a q) KNO ₃(a q)+ H ₂ O (l)
Correct answer
A. PbO ₂(s)+ H ₂ O ₂(a q) PbO (s)+ H ₂ O (l)+ O ₂(g)
Step-by-step solution
PbO ₂(s)+ H ₂ O ₂(a q) PbO (s)+ H ₂ O (l)+ O ₂(g)