Question

What reagent could be used to separate Br- from NO3- when added to an aqueous solution containing both?

NaI(aq)
AgNO3(aq)
CuSO4(aq)
Ba(OH)2(aq)

Answer 1

AgNO3(aq)
hope it helps

Answer 2

The correct answer is silver nitrate solution that is
`AgNO_3(aq)`.

Step-by-step explanation:

To separate
`Br^-` from
`NO_(3)^-` ions we will use silver nitrate solution. On addition of silver nitrate solution in a mixture of bromide and nitrate ions.

The silver ion will react with bromide ions to form silver bromide which will get precipitated out as yellow color solid from a mixture.

`AgNO_3(aq)+Br^-(aq)\rightarrow AgBr(s)+NO_(3)^-(aq)`

`AgNO_3(aq)+NO_(3)^-(aq)\rightarrow` no reaction