Q. The incorrect statement among the following is options.
A) PH₃ shows lower proton affinity than NH₃.
B) SO₂ can act as an oxidizing agent, but not as a reducing agent.
C) PF₃ exists but NF₅ does not.
D) NO₂ can dimerise easily.
Explanation
[Solution by Dr. Abubacker] SO₂ (sulphur in the +4 state) can be both reduced and oxidised, so it acts as an oxidising agent and as a reducing agent. The statement in (2) is therefore incorrect. The other three are correct: NH₃ is the stronger proton acceptor, N cannot form NF₅ (no d-orbitals), and NO₂ dimerises to N₂O₄. Answer (2).
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.