Question

Which reaction describes the ionization of a strong acid in aqueous solution?

A: LiOH(aq) --> Li+(aq) + OH- (aq)

B: HBr(aq) + H2O(l) --> H2Br+(aq) + OH- (aq)

C: HSO4ದaq) + H3O+(aq) --> H2O(l) + H2SO4(aq)

D: HI(aq) + H2O(l) --> H3O+(aq) + I- (aq)

Please explain why the answer would be a strong acid

Answer 1

First of all, option A, has Base LiOH. So it is not correct.

Then option C is not balanced , so it is also not correct.

Then , strong acid means it release H+ ion in aqueous acid and forms hydronium ion and it's conjugate base. Hence In B, HBr is an acid but it doesn't loose H+, instead accepted proton from water. It is not possible. So it is also wrong.

Hence remaining, option D, ,HI a strong acid, and lost H+ ion and forms conjugate base I-.

So D is correct