S Block Elements Question 276

Question: Which one of the following metalic hydroxides does not dissolve in sodium hydroxide solution

[KCET (Med.) 2001]

Options:

A) $ Zn{{(OH)}_2} $

B) $ Al{{(OH)}_3} $

C) $ Fe{{(OH)}_3} $

D) $ Pb{{(OH)}_2} $

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Answer:

Correct Answer: C

Solution:

$ Fe{{(OH)}_3} $ does not dissolve in $ NaOH $