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Assertion: Acidified [Cu(NH(3))(4)]^(2+)...

Assertion: Acidified `[Cu(NH_(3))_(4)]^(2+) and [Cu(H_(2)O)_(4)]^(2+)` both react with `K_(4)[Fe(CN)_(6)]` to give brown ppt.
Reason: both complexes are blue in colour of little different shade.

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Cu^(2+) salts with K_(4)[Fe(CN)_(6)] gives

The complex [Cu(NH_(3))_(4)]^(2+) is :

With K_4[Fe(CN)_6],Cu^(2+) ions give :

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H_(2)O_(2) reduces K_(4)Fe(CN)_(6)

Fe^(2+) does not give blue colour with K_(4)[Fe(CN)_(6)] but on its reaction with (X) ,blue colour oppears (X) can be