TNPSC Group 2 · 2017 Preliminary Examination
103.
The oxidation of SO₃²⁻ to SO₄²⁻ ion by oxygen
SO₃²⁻ + :Ö → SO₄²⁻, in this reaction which is Lewis acid and Lewis base?
Answer:
B.
Oxygen is Lewis acid and SO₃²⁻ is Lewis base