question_answer

For \[{{\text{H}}_{\text{3}}}\text{P}{{\text{O}}_{\text{3}}}\text{,}\] the correct choice is

A) \[{{\text{H}}_{\text{3}}}\text{P}{{\text{O}}_{\text{3}}}\]is dibasic and reducing

B) \[{{\text{H}}_{\text{3}}}\text{P}{{\text{O}}_{\text{3}}}\]is dibasic and non-reducing

C) \[{{\text{H}}_{3}}P{{O}_{3}}\]is tribasic and reducing

D) \[{{\text{H}}_{3}}P{{O}_{3}}\]is tribasic and non-reducing

Correct Answer: A

Solution :

\[{{\text{H}}_{\text{3}}}\text{P}{{\text{O}}_{\text{3}}}\] is dibasic because it has two P?OH bonds and reducing due to the presence of one P?H bond.