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Which one of the following compounds is ...

Which one of the following compounds is not a protoric acid?

A

`B(OH)_(3)`

B

`PO(OH)_(3)`

C

`SO(OH)_(2)`

D

`SO_(2)(OH)_(2)`

Text Solution

Verified by Experts

The correct Answer is:
A

Since the central atom `B` of `B(OH)_(3)` is having an incomplete octet, `B(OH)_(3)` does not act as a protonic acid but behaves as a Lewis acid:
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