First slide

Introduction and Arrhenius Theory

Question

Which salt can furnish H* il its aqueous solution?

Easy

A

${NaH}_{2} {PO}_{2}$
B

${Na}_{2} {HPO}_{3}$
C

${Na}_{2} {HPO}_{4}$
D

AIt of these

Solution

$H_{3} {PO}_{2} and H_{3} {PO}_{3}$ are mono and dibasic acids. Hence, ${NaH}_{2} {PO}_{2} and {Na}_{2} {HPO}_{3}$ normal salts. while ${Na}_{2} {HPO}_{4}$ is acid-salt as
one proton is there in the compound.

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