First slide

Electronic configuration and Atomic , physical properties

Question

Which one of the halogen is prepared by electrolysis method only

Easy

A

Cl₂
B

Br₂
C

F₂
D

I₂

Solution

F₂ + 2KX → 2KF + X₂
Oxdn.Power of F₂ > Cl₂ > Br₂ > I₂
No.other halogen can oxidize F^- to F₂
In fact strongest oxidizing agent is F₂ (after perxenic acid)
So it is not possible to prapare F₂ by Oxidation of F^-. It is prepared by electrolytic oxidation of ion using fused KHF₂

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