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Oxyacids of Phosphorus

Question

Which of the correct statement for the given acids?

A

Phosphinic acid is a diprotic acid while phosphonic acid is a monoprotic acid.

B

Phosphinic acid is a monoprotic acid while phosphonic acid is a diprotic acid.

C

Both are triprotic acids.

D

Both are diprotic acids.

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Solution

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Phosphinic acid is a monoprotic acid as it contains one $P - O H$ bond while phosphonic acid is a diprotic acid as it contains two $P - O H$ bonds.

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