Question

Why is it not possible to displace fluorine from metallic fluorides by any other halogens?

Answer 1

• Fluorine $\left(\mathrm{F}\right)$ is the most electronegative element and it belongs to group 17, and is considered a member of the halogen family.
• Due to its high reactivity, no other element can displace it from its compounds, even halogens.
• It is a very strong oxidizing agent and can be reduced easily as compared to other halogens
• Thus due to high reactivity and strong oxidizing nature, It is not possible to displace fluorine from metallic fluorides by any other halogens like$\mathrm{Cl},\mathrm{Br}\mathrm{and}\mathrm{I}$.