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A blue colouration is not obtained when...

A blue colouration is not obtained when

A

Ammonium hydroxide dissolves in copper sulphate

B

Copper sulphate solution reacts with `K_4[Fe(CN)_6]`

C

Ferric chloride reacts with sodium ferrocyanide

D

Anhydrous `CuSO_4` is dissolved in water

Text Solution

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The correct Answer is:
B
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