p-Block elementsHard

Question

BF3 on hydrolysis forms :

Options

A.H3BO3
B.HBF4
C.both (A) and (B)
D.none of these

Solution

BF3 + 3H2O →  B(OH)3 + 3HF (Partial hydrolysis)
BF3 + HF → HBF4.

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