Question

All the oxides and hydroxides of Boron family are ____________ in nature.

(a) acidic

(b) basic

(c) acidic and basic

(d) acidic, basic and amphoteric

This question was posed to me during an interview.

I'd like to ask this question from p-Block Elements topic in section p-Block Elements of Chemistry – Class 11

Answer 1

Correct answer is (d) acidic, basic and amphoteric

Best explanation: On moving top to bottom of the group, there is a change from acidic to amphoteric and then to basic character, of oxides and hydroxides of group 13 elements. Only boric acid is soluble in water while the other hydroxides are insoluble in water.