Which of the following equations depicts the reducing nature of H₂O₂?

(i) 2[Fe(CN)₆]^4- + 2H⁺ + H₂O₂ → 2[Fe(CN)₆]^3- + 2H₂O

(ii) I₂ + H₂O₂ + 2OH^–→ 2I^-+ 2H₂O + O₂

(iii) Mn²⁺ + H₂O₂ → Mn⁴⁺ + 2OH

(iv) PbS + 4H₂O₂→ PbSO₄ + 4H₂O

H₂S has minimum boiling point.

PbS + 4H₂O_2->PbSO₄ + 4H₂O.

Volume strength of H₂O₂ = Molarity * 11.2

HF molecules are associated with strong intermolecular hydrogen bonding hence its boiling point is the highest

Compound             Melting Point (K)

HF                          190

HCl