question_answer

The maximum number of P-H bonds is contained in which of the following molecules?

A) \[{{H}_{3}}P{{O}_{3}}\]              

B) \[{{H}_{3}}P{{O}_{2}}\]

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

D) \[{{H}_{3}}P{{O}_{4}}\]   

Correct Answer: A

Solution :

Maximum number of p-H bonds is present in \[{{H}_{3}}P{{O}_{2}}.\] Hence, the correct option is [a].