p-Block elementsHard
Question
The pair of amphoteric hydroxides is
Options
A.Al OH3, LiOH
B.Be(OH)2, Mg(OH)2
C.B(OH)3, Be(OH)2
D.Zn(OH)2, Be(OH)2
Solution
Zn(OH)2 and Be(OH)2 are amphoteric hydoxides in nature.
Be(OH)2 + 2HCl → BeCl2 + 2H2O
Be(OH) + 2NaOH → Na2BeO2 + H2O
Zn(OH)2 + 2HCl → ZnCl2 + 2H2O
Zn(OH)2 + 2NaOH → Na2ZnO2 + 2H2O(OH)3
Be(OH)2 + 2HCl → BeCl2 + 2H2O
Be(OH) + 2NaOH → Na2BeO2 + H2O
Zn(OH)2 + 2HCl → ZnCl2 + 2H2O
Zn(OH)2 + 2NaOH → Na2ZnO2 + 2H2O(OH)3
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