An interhalogen ABₓ is polar and nonplanar. A is a halogen that is liquid near25°C; B is the smallest halogen. Independent electron counting gives one central lone pair and no formal charges in a stru

Question

An interhalogen ABₓ is polar and nonplanar. A is a halogen that is liquid near25°C; B is the smallest halogen. Independent electron counting gives one central lone pair and no formal charges in a structure with only A–B single bonds. Which statements follow?

TestHub · Accepted Answer

The physical and periodic clues identify bromine and fluorine. Bromine contributes7 valence electrons; retaining one lone pair leaves5 for five single bonds, so BrF₅ is AX₅E and square pyramidal. BrF is a polar diatomic. A seven-coordinate BrF₇ is not an established ordinary ambient bromine fluoride; size and crowding limit extrapolation from IF₇, rejecting D.

Chemistry - CHEMICAL BONDING Question with Solution | TestHub

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