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Chemistry-Ionic Bond

NEET Chemistry Ionic Bond Assertion Reason Question

Type: Assertion Reason-assertion-Medium-Class 11

Assertion (A): NH3 has a higher dipole moment than NF3. | Reason (R): In NH3, the lone pair dipole is aligned with the N-H bond dipoles, while in NF3, it opposes the N-F bond dipoles.

A

Both A and R are true and R is the correct explanation of A.

B

Both A and R are true but R is not the correct explanation of A.

C

A is true but R is false.

D

A is false.

Correct Answer

Option A

Detailed Explanation

The dipole moment of NH3 is greater than that of NF3 because the lone pair dipole in NH3 is in the same direction as the N-H bond dipoles, whereas in NF3, it opposes the N-F bond dipoles.

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