Question

$KH{\left({IO}_3\right)}_2$, the equivalent weight of the given substance as acid or base is :

• A. $E=M$
• B. $E=\frac{M}{3}$
• C. $E=\frac{M}{2}$
• D. none of these

Answer 1

The correct option is A $E=M$

1 mole of $KH{\left({IO}_3\right)}_2$ can either accept or release 1 mole of hydrogen ions.
Thus, it is either monoacidic base or monobasic acid. Hence, its equivalent weight is equal to its molecular weight.
$\text{Equivalent mass of an acid}=\frac{\text{Molar mass of the acid}}{\text{Number of replaceable H atoms}}$
$E=\frac{\text{M}}{1}$
Thus, $E=M$