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Which of the following combinations in a...

Which of the following combinations in an aqueous medium will give a blue colour or precipitate ?

A

`Fe^(2+)+[Fe(CN)_(6)]^(3+)`

B

`Fe^(3+)+[Fe(CN)_(6)]^(4-)`

C

`Hg^(2+)+SCN^(-)+Co^(2+)`

D

`Fe^(3+)+SCN^(-)`

Text Solution

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The correct Answer is:
A, B, C
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