Question

What reagent could be used to separate Br- from CH3 CO2 when added to an aqueous solution containing both.

A. AgNO3 aq
B Ba (OH)2 aq
C NaI aq
D CuSO4 aq

Answer 1

C is the answer for this!

Answer 2

Answer: A)
`AgNO_3`

Explanation: All acetates are soluble.

All compounds of Alkali metals are soluble.

Bromides of Barium, and copper are soluble but that of silver is insoluble.

So, to separate bromide ion from acetate ion, we need to mix silver nitrate to the mixture.

Hence, the right choice is A)
`AgNO_3` .

`AgNO_3(aq)+Br^-(aq)\rightarrow AgBr(s)+NO_3^-(aq)`