Question

Give reason
1) Boric acid is a monobasic acid
2)PbCl4 is a good oxidising agent.

Answer 1

1. Boric acid is act as monobasic rather then tribasic because it does not act as proton donor rather it accept a lone pair of electrons from OH -ions. 2.Due to inert pair effect increased stability of +2 oxidation state of group 14 element and Pb4+ can easily gain 2 electrons to form more stable Pb2+ions thereby act as strong oxidising agent.