Which of the following reaction is true at `25^(@)C` for given cell ?
Cell : `Pt|Br_(2(l))|Br_((aq))^(-)||Cl_((aq))^(-)|Cl_(2(aq))|Pt`

Options

A. `2Br_((aq))^(-)+Cl_(2(g)) to 2Cl_((aq))^(-)+Br_(2(l))`
B. `Br_(2(l))+2Cl_((aq))^(-) to Cl_(2(g))+2Br_((aq))^(-)`
C. `Br_(2(l))+Cl_(2(g)) to 2Br_((aq))^(-)+2Cl_((aq))^(-)`
D. `2Br_((aq))^(-)+Cl_(2(g)) to 2Cl_((aq))^(-)+Br_(2(l))`

Answer

A

Explanation

Note : above given reaction is actually used in laboratory for identification of `Br^(-)`, so following representation can be possible:
`Cl_((aq))^(-)|Cl_(2)|Pt||Pt|Br_(2(l))|Br_((aq))^(-)`