A) \[{{H}_{3}}P{{O}_{2}}\]
B) \[{{H}_{3}}P{{O}_{3}}\]
C) \[{{H}_{3}}P{{O}_{4}}\]
D) \[{{H}_{4}}{{P}_{2}}{{O}_{6}}\]
Correct Answer: A
Solution :
Hypophosphorus acid \[({{H}_{3}}P{{O}_{2}})\] is a monobasic acid which act as reducing agent. In this molecule two \[P-H\] bonds are responsible for its reducing character and one \[2HI+{{H}_{2}}S{{O}_{4}}\,\to \,2{{H}_{2}}O+\underset{\text{Violet vapour}}{\mathop{{{I}_{2}}+S{{O}_{2}}}}\,\uparrow \] bond is responsible for its monobasic acid character.You need to login to perform this action.
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