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Question

Chemistry Question on GROUP 1 ELEMENTS

Which one of the following metallic hydroxides does not dissolve in sodium hydroxide solution ?

A

Al(OH)3Al(OH)_3

B

Pb(OH)2Pb(OH)_2

C

Fe(OH)3Fe(OH)_3

D

Zn(OH)2Zn(OH)_2

Answer

Fe(OH)3Fe(OH)_3

Explanation

Solution

Fe(OH)3Fe(OH)_3 does not dissolve in NaOH(aq)NaOH(aq). All other hydroxides are amphoteric in nature and dissolve in NaOHNaOH.