Which is the CORRECT relation of bond angles? | vedclass

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(B) In $NH_3$,the bond angle is $107^o$ due to $sp^3$ hybridization and lone pair-bond pair repulsion.In $(CH_3)_3N$,the bond angle is approximately $

Vedclass · Accepted Answer

$(SiH_3)_3N > (CH_3)_3N > NH_3$

Vedclass · Answer

(B) In $NH_3$,the bond angle is $107^o$ due to $sp^3$ hybridization and lone pair-bond pair repulsion.In $(CH_3)_3N$,the bond angle is approximately $108^o$ because the bulky methyl groups cause more repulsion than the smaller $H$ atoms.In $(SiH_3)_3N$,the nitrogen atom is $sp^2$ hybridized with a bond angle of $120^o$ because the lone pair of $N$ engages in $p\pi-d\pi$ back bonding with the empty $d$ orbitals of $Si$.Therefore,the correct order of bond angles is $(SiH_3)_3N > (CH_3)_3N > NH_3$.

Which is the $CORRECT$ relation of bond angles?

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