1.

Standard reduction potentials of the half reactions are given below : {:(F_(2) (g) + 2e^(-) rarr 2F^(-) (aq) , ""E^(@) = + 2.85 V),(Cl_(2)(g) + 2e^(-) rarr 2Cl^(-)(aq)," "E^(@) = +1.36 V),(Br_(2)(l) + 2e^(-) rarr 2Br^(-) (aq)," "E^(@) = +1.06 V),(I_(2) (s) + 2e^(-) rarr 2I^(-)(aq), ""E^(@) = + 0.53 V):} The strongest oxidising and reducing agents respectively are

Answer»

`F_(2) and I^(-)`
`Br_(2) and Cl^(-)`
`Cl_(2) and Br^(-)`
`Cl_(2) and I_(2)`

Solution :Since `F_(2)` has the HIGHEST electrode potential, therefore, it is the strongest OXIDISING AGENT and `F^(-)` is the WEAKEST reducing agent.
Further, since `I_(2)` has the lowest electrode potential, therefore, it is the weakest oxidising agent and CONVERSELY `I^(-)` is the strongest reducing agent. Thus, option (a) is correct.


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