Question

Explain why :
(a) H₂S is more acidic than H₂O.
(b) Two S - O bonds in SO₂ are identical.
(c) SF6 is inert and stable but SF₄ is reactive.
(d) Sulphur has greater tendency for catenation than oxygen

Answer 1

[Hint : (iii) Because six F atoms protect the sulphur atom from attack by any
reagent due to steric hindrance but four F atoms in SF₄ cannot offer much steric
hindrance, hence reactive.]