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In a combination of NO3, Br and I presen...

In a combination of `NO_3`, Br and I present in a mixture, Br and I interfere in the ring test for `NO_3` . These are removed by adding a solution of

A

`AgNO_3`

B

`Ag_2 SO_4`

C

`Ag_2 CO_3`

D

none of these

Text Solution

Verified by Experts

The correct Answer is:
B
`NO_(3)^(-) + Br^(-) + I^(-) + Ag_(2) SO_(4) to underset("ppt")ubrace(AgBr + AgI) + NO_(3)^(-) + SO_(4)^(2-)`
`Ag_2 CO_3` does not dissolve in water .
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