The acidic behavior of orthoboric acid () in aqueous solution is best described by which of the foll — p Block Elements Chemistry Question

💡 Solution & Explanation

Orthoboric acid is not an Arrhenius acid (it does not donate its own proton). It acts as a weak monobasic Lewis acid by accepting an $OH^-$ from water to complete its octet, releasing $H^+$ into the solution: $B(OH)_3 + H_2O \rightleftharpoons [B(OH)_4]^- + H^+$.