A) boron is non-metal in free state, while\[{{N}_{2}}\]is gas
B) there is no dipole moment in\[B-F\]bond while\[N-F\]bond have some dipole moment
C) \[B{{F}_{3}}\]is planar while\[N{{F}_{3}}\]is pyramidal
D) boron atom is smaller than nitrogen atom
Correct Answer: B
Solution :
\[N{{F}_{3}}\]and\[B{{F}_{3}}\]both are covalent but\[B{{F}_{3}}\]is non polar, while\[B{{F}_{3}}\]is polar because there is no dipole moment in BF bond while NF bond have some dipole moment.
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