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K(4)[Fe(CN)(6)] is used to test Cu^(2+)...

`K_(4)[Fe(CN)_(6)]` is used to test `Cu^(2+),Fe^(2+),Zn^(2+),Cd^(2+)`

A

`{:(P,Q,R,S),(1,2,4,3):}`

B

`{:(P,Q,R,S),(2,1,4,3):}`

C

`{:(P,Q,R,S),(4,1,3,2):}`

D

`{:(P,Q,R,S),(4,1,2,3):}`

Text Solution

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The correct Answer is:
A
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