Q.

Which of the following is acidic in nature?

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a

Be(OH)2

b

Mg(OH)2

c

Al(OH)3

d

B(OH)3

answer is D.

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Detailed Solution

Mg(OH)2 is a weak base; Be(OH)2 and Al(OH)3 are amphotericin nature B(OH)3can accept one hydroxyl ion from waterH2Oand proton is released. Thus, it acts as a Lewis acid.B(OH)3+2H2O⇌B(OH)4⊖+H3O⊕
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