Question

Statement 1: $H_3PO_4$ is a dibasic acid and its salt $Na_3PO_3$ does not exist.
Statement 2 : Being dibasic nature, only two $H$ are replaceable.

• A. If both Statement $1$ and Statement $2$ are true and the statement $2$ is the correct explanation of the statement $1$
• B. If both Statement $1$ and Statement $2$ are true but statement $2$ is not the correct explanation of the statement $1$
• C. If Statement $1$ is true but Statement $2$ is false
• D. If Statement $1$ is false but Statement $2$ is true

Answer 1

Answer: (A)

thus, only $NaH_2PO_3$ and $Na_2HPO_3$ salts are possible.