Assertion: Fluorine is a stronger oxidising agent than iodine.
Reason: Fluorine has greater electronegativity than iodine.

 AIIMS 2012

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Solution

Fluorine has higher standard electrode potential (reduction potential) than iodine. Hence, it act as strong oxidising agent than iodine.

Fluorine has greater electronegativity than iodine because fluorine is smaller and has its electrons closer to the positively charged nucleus.

Hence, option (b) is correct.

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Assertion : Fluorine $F_{2}$ is a stronger oxidising agent than Chlorine ${Cl}_{2}$ .

Reason : Fluorine is more electronegative than chlorine.

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