N-F bond is more polar than N-H bond. But NH_3 is more polar than NF_3

1.	N-F bond is more polar than N-H bond. But NH_3 is more polar than NF_3. Comment
Answer» Solution :In `NH_(3)` the N-H bond is polar towards N atom. Polarisationof bonds and Ione pair are additive `mu` is 1.46 D. IN `NF_(3)` the N-F bond is polar away to N atom. Polarisation of bonds and Ione pair are SUBTRACTIVE . `mu` is 0.24 D.

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