Question

Which of the following compound is not a protonic acid?

• A. $S{O}_2(OH{)}_2$
• B. $B(OH{)}_3$
• C. $PO(OH{)}_3$
• D. $SO(OH{)}_2$

Answer 1

The correct option is B $B(OH{)}_3$

$B(OH{)}_3$ i.e $H_{3}B{O}_3$

a protonic acid is a species which donate a proton i.e. H+ . But boric acid do not donate H+ rather it accepts an electron pair from the solution or the donor i.e. an OH-