(A) In $AB_4E$ type molecules,the central atom $A$ has $4$ bond pairs and $1$ lone pair.The total number of electron pairs is $5$,which corresponds to

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(A) In $AB_4E$ type molecules,the central atom $A$ has $4$ bond pairs and $1$ lone pair.The total number of electron pairs is $5$,which corresponds to a trigonal bipyramidal electron geometry.To minimize electron-electron repulsions,the lone pair occupies an equatorial position,resulting in a see-saw molecular shape.Example: $SF_4$.