| Assertion: Among nitrogen halides \[N{{X}_{3}}\] the dipole moment is highest for \[N{{I}_{3}}\] and lowest for \[N{{F}_{3}}\]. |
| Reason: Nitrogen halides \[N{{X}_{3}}\], have trigonal pyramidal structure. |
A) Assertion and reason both are correct statements and reason is correct explanation for assertion.
B) Assertion and reason both are correct statements but reason is not correct explanation for assertion.
C) Assertion is correct statement but reason is wrong statement.
D) Assertion is wrong statement but reason is correct statement.
Correct Answer: B
Solution :
In case of \[N{{I}_{3}}\], the lone pair moment adds on the resultant of the N-I moments but in case of \[N{{F}_{3}}\], the lone pair moment on N partly cancels the resultant N-F moments.
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