1.

Write preparation of interhalogen compounds and state its uses.

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Solution :
Preparation: The interhalogen compound can be prepared by the direct COMBINATION or by the action of halogen on lower interhalogen compounds.
`underset("equal volume")(Cl_(2) + F_(2)) overset(437 K)to 2ClF, I_(2) + underset("excess.)(3Cl_(2)) to 2lCl_(3)`
`underset("excess")(Cl_(2) _ 3F_(2)) overset(573 K) to 2ClF_(3), underset("diluted with WATER")(Br_(2) + 3F_(2) to 2BrF_(3))`
`underset("equimolar")(I_(2) + Cl_(2)) to 2lCl, Br_(2) + underset("excess")5F_(2) to 2BrF_(5)`
Uses of interhalogen compounds : These compounds can be used as non AQUEOUS solvents.
They are very useful fluorinating agents.
`CIF_3` and `BrF_3` are used for the PRODUCTION of `UF_6` in the ENRICHMENT of uranium-235
`U_(s) + 3ClF_(3)(g) + 3ClF_(g)`


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