p-Block elementsHard
Question
Which of the following is only acidic in nature?
Options
A.Be(OH)2
B.Mg(OH)2
C.B(OH)3
D.Al(OH)3
Solution
B(OH)3 is actually H3BO3 which is ane acid (Boric acid): It is a monobasic acid. It is not a proton donor (Bronsted acid), but behavees as Lewis acid. It can accept a lone pair of electrons OH- ion.
B(OH)3 + NaOH → NaBO2 + 2H2O
B(OH)3 + NaOH → NaBO2 + 2H2O
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