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The geometries of the molecules BF3 and ...

The geometries of the molecules `BF_3` and `NF_3` are trigonal planar and trigonal pyramidal, respectively. Which statement best accounts for the difference? : N is more electronegative than B, `BF_3` is ionic, `NF_3` is covalent, B utilise `sp^2` hybridization, while N does not, N is `sp^3` hybridised and has non-bonding pair of valence electrons, while B does not

A

N is more electronegative than B

B

`BF_3` is ionic, `NF_3` is covalent

C

B utilise `sp^2` hybridization, while N does not

D

N is `sp^3` hybridised and has non-bonding pair of valence electrons, while B does not

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The correct Answer is:
D
N is `sp^3` hybridised and has non-bonding pair of valence electrons, while B does not
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