Chemistry - Complete Pblock- Question with Solution | TestHub

Borax (Na₂B₄O₇·10H₂O) is the salt of a strong base (NaOH) and a weak acid (boric acid, H₃BO₃). When it dissolves in water, it undergoes hydrolysis, producing hydroxide ions (OH⁻), which makes the solution basic.

The hydrolysis reaction is:

B₄O₇²⁻(aq) + 7H₂O(l) $\rightleftharpoons$ 4H₃BO₃(aq) + 2OH⁻(aq)