Question

Match the acids from the List I with corresponding basicity in List II.

Answer 1

$Equivalentweight=\frac{Molecularweight}{n}$

$n=\frac{Acidity}{Basicity}$

$C{H}_{3}COOH$, Monobasic, $E_w=MW$

$H_{3}P{O}_4$, Tribasic, $E_w=\frac{MW}{3}$

$H_{2}S{O}_4$, Dibasic $E_w=\frac{MW}{2}$

$H_{3}P{O}_3$, Dibasic $E_w=\frac{MW}{2}$

$H_{3}P{O}_3$, $P$ oxidation state $=+3$

It can get oxidised to $+5$, so it is a reducing agent.