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In qualitative analysis when H(2)S is pa...

In qualitative analysis when `H_(2)S` is passed through an aqueous solution of salt acidified with dil. HCl, a black precipitate is obtained. On boiling the precipitate with dil. `HNO_(3)`, it forms a solution of blue colour. Addition of excess of aqueous solution of ammonia to this solution gives

A

Deep blue precipitate of `Cu(OH)_(2)`

B

Deep blue solution of `[Cu(NH_(3))_(4)]^(2+)`

C

Deep blue solution of `Cu(NO_(3))_(2)`

D

Deep blue solution of `Cu(OH)_(2).Cu(NO_(3))_(2)`

Text Solution

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The correct Answer is:
B
Properties of ionic solid
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