Explain why the bond angle of NH3 is greater than that of NF3 while the bond angle of PH3 is less than that of. PF3.
Solution -.
As the electronegativity of other atoms increases, bond angle decreases. Thus, bond angle in NF3is smaller than that in NH3 because of the difference in the polarity of N in these molecules..
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And The bond angle of PH3 is less than that of PF3 Both PH3 and PF3 are pyramidal in shape. Both have one lone pair on phosphorous. But PF3
As the electronegativity of other atoms increases, bond angle decreases. Thus, bond angle in NF3is smaller than that in NH3 because of the difference in the polarity of N in these molecules..
.
And The bond angle of PH3 is less than that of PF3 Both PH3 and PF3 are pyramidal in shape. Both have one lone pair on phosphorous. But PF3
has partial double bond character due to back π-donation of electrons from p orbitals of F atom to empty d orbitals of P.
