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Which of the following compounds after m...

Which of the following compounds after mixing can produce blue colouration?
(I) `K_(4)[Fe(CN)_(6)] and FeCl_(3)` solution
(II) `NH_(4)OH and CuSO_(4)` solution
(III) Adding anhydrous `CuSO_(4)` to water
(IV) `NH_(4)OH+NiSO_(4)` solution
Choose the correct code:

A

I,II,III

B

II,III

C

I,III

D

I,II,III,IV

Text Solution

Verified by Experts

The correct Answer is:
D
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