Which of the following has the smallest bond | vedclass

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(C) To determine the bond angle,we look at the hybridization and the number of lone pairs on the central atom:$1$. $BeF_2$: $sp$ hybridization,linear

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$H_2O$

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(C) To determine the bond angle,we look at the hybridization and the number of lone pairs on the central atom:$1$. $BeF_2$: $sp$ hybridization,linear geometry,bond angle = $180^{\circ}$.$2$. $CH_4$: $sp^3$ hybridization,tetrahedral geometry,bond angle = $109.5^{\circ}$.$3$. $NH_3$: $sp^3$ hybridization,trigonal pyramidal geometry,one lone pair,bond angle = $107^{\circ}$.$4$. $H_2O$: $sp^3$ hybridization,bent geometry,two lone pairs. The lone pair-lone pair repulsion is greater than lone pair-bond pair repulsion,which compresses the bond angle to $104.5^{\circ}$.Comparing these,$H_2O$ has the smallest bond angle.

Which of the following has the smallest bond angle?

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