question_answer

Formula of hypophosphorus acid is:

A) \[H-\underset{H}{\overset{O}{\mathop{\underset{||}{\overset{||}{\mathop{P}}}\,}}}\,-OH\]                

B) \[HO-\underset{OH}{\overset{O}{\mathop{\underset{||}{\overset{||}{\mathop{P}}}\,}}}\,-OH\]

C) \[H-\underset{H}{\overset{O}{\mathop{\underset{||}{\overset{||}{\mathop{P}}}\,}}}\,=OH\]               

D) \[H-\underset{OH}{\overset{O}{\mathop{\underset{|}{\overset{||}{\mathop{P}}}\,}}}\,-OH\]

Correct Answer: A

Solution :

Hypophosphorus acid is \[{{H}_{3}}P{{O}_{4}}\]                 It is monobasic acid.