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Blue coloured compound is obtained when ...

Blue coloured compound is obtained when :

A

`Fe^(2+)` ions react with potassium ferrocyanide

B

`Fe^(3+)` ions react with potassium ferrocyanide

C

`Fe^(3+0` ions react with potassium ferrocyanide

D

`Fe^(3+)` ions react with potassium sulphocyanide .

Text Solution

Verified by Experts

The correct Answer is:
B
`4FeCl_3 + underset("Pot. Ferrocyanide")(3K_4[Fe(CN)_6]) to underset("Deep blue colouration")(Fe_4[Fe(CN)_6]) + 12 KCl `
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