The d-And-f-Block Elements

The d-And-f-Block Elements

Question

How are interhalogen compounds formed? What general compositions can be assigned to them?

Answer

An interhalogen compound is a molecule which contains two or more different halogen atoms. A most interhalogen compound known are binary. Their formula is generally XYn Where n=1, 3, 5, or 7 and X is the less electronegative of two halogens. On hydrolysis, they ionise to give rise to poly -halogen ion. For example

Br2 (l) + F2 (g) -->  2BrF (g)

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