MCQOPTIONS
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| 1. |
\[B{{F}_{3}}\] and \[N{{F}_{3}}\]both molecules are covalent, but \[B{{F}_{3}}\] is non-polar and \[N{{F}_{3}}\] is polar. Its reason is [CPMT 1989; NCERT 1980] |
| A. | In uncombined state boron is metal and nitrogen is gas |
| B. | \[B-F\]bond has no dipole moment whereas \[N-F\] bond has dipole moment |
| C. | The size of boron atom is smaller than nitrogen |
| D. | \[B{{F}_{3}}\] is planar whereas \[N{{F}_{3}}\] is pyramidal |
| Answer» E. | |