NEET Chemistry Ionic Bond Assertion Reason Question
Assertion (A): The dipole moment of NH3 is greater than that of NF3. | Reason (R): In NH3, the orbital dipole due to the lone pair is in the same direction as the resultant dipole moment of the N-H bonds.
Both A and R are true, and R is the correct explanation of A.
Both A and R are true, but R is not the correct explanation of A.
A is true but R is false.
A is false.
Correct Answer
Detailed Explanation
The NCERT context explains that in NH3, the lone pair dipole moment adds to the N-H bond dipole moments, resulting in a higher dipole moment than in NF3, where the lone pair dipole is opposite to the N-F bond moments.
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