BITSAT2024ChemistryRedox ReactionsActual
Which of the following is only a redox reaction but not a disproportionation reaction?
Options
- A4 H ₃ PO ₃ 3 H ₃ PO ₄+ PH ₃
- B2 H ₂ O ₂ 2 H ₂ O + O ₂
- CP ₄+3 NaOH +3 H ₂ O 3 NaH ₂ PO ₂+ PH ₃
- DP ₄+8 SOCl ₂ 4 PCl ₃+2 ~S ₂ Cl ₂+4 SO ₂
Correct answer
D. P ₄+8 SOCl ₂ 4 PCl ₃+2 ~S ₂ Cl ₂+4 SO ₂
Step-by-step solution
The reaction P ₄+8 SOCl ₂ 4 PCl ₃+2 ~S ₂ Cl ₂+4 SO ₂ involves change of oxidation state of P from 0 to +3 and that of S from +4 to +2 . Thus, it is a redox reaction but not a disproportionation reaction.