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what is mean by interhalogen?

An interhalogen compound is a molecule whose atom contains two or more different halogen atoms (fluorine, chlorine, bromine, iodine or astatine).

Most interhalogen compounds known are binary (composed of only two distinct elements). Their formulas are generally XYn, where n = 1, 3, 5 or 7, and X is the less electronegative of the two halogens. They are all prone to hydrolysis, and ionise to give rise to polyhalogen ions.


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