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The hydroxide of which metal ion is solu...

The hydroxide of which metal ion is soluble in excess of sodium hydroxide solution:

A

`Fe^(3+)`

B

`Cr^(3+)`

C

`Sn^(2+)`

D

`Cu^(2+)`

Text Solution

Verified by Experts

The correct Answer is:
B, C
`Sn(OH)_(2)+4OH^(-)+H_(2)Oto[Sn(OH)_(6)]^(4-)` (soluble complex)
`Cr(OH)_(3)+3OH^(-) to [Cr(OH)+_(6)]^(3-)`
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