question_answer

Among the oxyacids of phosphorus, the dibasic acid is

A)  \[{{H}_{4}}{{P}_{2}}{{O}_{7}}\]                 

B)  \[{{H}_{3}}P{{O}_{2}}\]

C)  \[HP{{O}_{3}}\]               

D)         \[{{H}_{3}}P{{O}_{4}}\]

E)  \[{{H}_{3}}P{{O}_{3}}\]

Correct Answer: E

Solution :

\[{{H}_{3}}P{{O}_{3}}\]is a dibasic acid as it contains two replaceable hydrogen atoms. (a)   (b) (c) (d)    (e)