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Discuss the shape of the following molecules using the VSEPR model: BeCl_{2}, BCl_{3}, SiCl_{4}, AsF_{5}, H_{2}S,
PH_{3 }

Answer
##
BeCl_{2 }

_{2}is of the type AB

_{2}. Hence, it has a linear shape.

##
BCl_{3 }

## The central atom has no lone pair and there are three bond pairs. Hence, it is of the type AB

_{3}. Hence, it is trigonal planar.

##
SiCl_{4 }

The central atom has no lone pair and there are four bond pairs. Hence, the shape of SiCl

_{4}is tetrahedral being the AB

_{4}type molecule.

##
AsF_{5 }

The central atom has no lone pair and there are five bond pairs. Hence, AsF

_{5}is of the type AB_{5}. Therefore, the shape is trigonal bipyramidal.##
H_{2}S

_{2}S is of the type AB

_{2}E. The shape is Bent.

##
PH_{3 }

_{3}is of the AB

_{3}E type. Therefore, the shape is trigonal bipyramidal.

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