1.

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

Answer»

`2Br_((aq))^(-)+Cl_(2(g)) to 2Cl_((aq))^(-)+Br_(2(L))`
`Br_(2(l))+2Cl_((aq))^(-) to Cl_(2(g))+2Br_((aq))^(-)`
`Br_(2(l))+Cl_(2(g)) to 2Br_((aq))^(-)+2Cl_((aq))^(-)`
`2Br_((aq))^(-)+Cl_(2(g)) to 2Cl_((aq))^(-)+Br_(2(l))`

Solution :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))^(-)`


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