Aqueous solution containing 1 mol of borax reacts with 2 mol... | CHEMISTRY - USES OF BORON AND ALUMINIUM AND THEIR COMPOUNDS | SolveeIt | Solveeit

Today, August 23

Question

Aqueous solution containing 1 mol of borax reacts with 2 mol of acids. This is because of :

A

Formation of 2 mol of B(OH)3 only

B

Formation of 2 mol of [B(OH)4]– only

C

Formation of 1 mol each of B(OH)3 and [B(OH)4]–

D

Formation of 2 mol each of [B(OH)4]– and B(OH)3 , of which only [B(OH)4]– reacts with acid

Answer

Formation of 2 mol each of $B(OH)4$ – and B(OH)3 , of which only $B(OH)4$ – reacts with acid

Explanation

Solution

[B4O5(OH)4]2– + 5H2O $\rightleftharpoons$ 2B(OH)3 (weak acid) + 2[B(OH4)]– (salt)