Q.

The reaction between an aqueous copper sulphate solution and an aqueous ammonium hydroxide solution results in the formation of:


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a

Brown precipitate

b

Pale blue precipitate

c

White precipitate

d

Green precipitate 

answer is B.

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Detailed Solution

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The reaction between an aqueous copper sulphate solution and an aqueous ammonium hydroxide solution results in pale blue precipitate.
When an aqueous solution of copper sulphate reacts with ammonium hydroxide solution the reaction takes place as follow:
CuSO4(aq)+2NH4OH(aq)Cu(OH)2(ppt)+(NH4)2SO4
The blue precipitate of copper hydroxide Cu(OH)2 is formed.
 
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