Chemistry - CHEMICAL BONDING Question with Solution | TestHub

$H_{3}P{O}_3$ has only two acidic hydrogens hence ${\mathrm{NaH}}_2{\mathrm{PO}}_3$ will haveonly one acidic hydrogen.

$H_{3}P{O}_4$ has 3 acidic hydrogens hence ${\mathrm{NaH}}_2{\mathrm{PO}}_4$ will have two acidic hydrogens.

$H_{3}P{O}_2$ has only one acidic hydrogen hence ${\mathrm{CsH}}_2{\mathrm{PO}}_2$ has no acidic hydrogen.

$H_4{P}_2{O}_5$ has two acidic hydrogens hence $N{a}_2{H}_2{P}_2{O}_5$ will have no acidic hydrogens.