• question_answer Which one of the following metalic hydroxides does not dissolve in sodium hydroxide solution [KCET (Med.) 2001] A) $Zn{{(OH)}_{2}}$ B) $Al{{(OH)}_{3}}$ C) $Fe{{(OH)}_{3}}$ D) $Pb{{(OH)}_{2}}$

Solution :

$Fe{{(OH)}_{3}}$ is soluble in sodium hydroxide solution.

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