The molecule having the smallest bond angle i | vedclass

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(C) In the series $NCl_3, PCl_3, AsCl_3$,and $SbCl_3$,all central atoms belong to Group $15$ and possess one lone pair of electrons.As we move down th

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$SbCl_3$

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(C) In the series $NCl_3, PCl_3, AsCl_3$,and $SbCl_3$,all central atoms belong to Group $15$ and possess one lone pair of electrons.As we move down the group from $N$ to $Sb$,the electronegativity of the central atom decreases,and its atomic size increases.According to $VSEPR$ theory,as the size of the central atom increases,the bond pairs are located further away from the central atom.This leads to a reduction in the repulsion between the bond pairs,which results in a decrease in the bond angle.Therefore,$SbCl_3$ has the smallest bond angle among the given molecules.

The molecule having the smallest bond angle is:

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