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Brown ring test is for...

Brown ring test is for

A

`NO_(3)^(-)`

B

`Cl^(-)`

C

I

D

`Br^(-)`

Text Solution

Verified by Experts

The correct Answer is:
A
`NO_(3)^(-)+H_(2)SO_(4) to HSO_(4)^(-) + HNO_(3)`
`6H_(2)SO_(4)+2HNO_(3)+3H_(2)SO_(4) to 3Fe(SO_(4))_(3)+4H_(2)O+2NO`
`[Fe(H_(2)O)_(6)]SO_(4). H_(2)O+NO to underset("Brown ring")([Fe(H_(2)O)_(5)(NO)]SO_(4))+2H_(2)O`
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