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Question
Which is the correct statement for the given acids?
Options
Phosphinic acid is a diprotic acid while phosphonic acid is a monoprotic acid.
Phosphinic acid is a monoprotic acid while phosphonic acid is a diprotic acid.
Both are triprotic acids.
Both are diprotic acids.
MCQ
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Solution
Phosphinic acid is a monoprotic acid while phosphonic acid is a diprotic acid.
Explanation:
According to the textbook, phosphinic acid (H3PO2) has only one ionisable -OH group, so it is monoprotic, while phosphonic acid (H3PO3) has two ionisable -OH groups, making it diprotic.
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