Given below are two statements:

Statement I: Since fluorine is more electronegative than nitrogen, the net dipole moment of is greater than .

Statement II: In , the orbital dipole due to lone pair

Question

Given below are two statements:

Statement I: Since fluorine is more electronegative than nitrogen, the net dipole moment of  is greater than .

Statement II: In , the orbital dipole due to lone pair and the dipole moment of N–H bonds are in opposite direction, but in  the orbital dipole due to lone pair and dipole moments of N–F bonds are in same direction.

Choose the most appropriate answer:

Canvas Classes · Accepted Answer

Step 1 — Evaluate Statement I:
- : μ ≈ 0.24 D; : μ ≈ 1.47 D
-  has the greater dipole moment, not 
- Statement I is false ✗

Step 2 — Evaluate Statement II:
- In : N–H bond dipoles point toward N; lone pair dipole points away from N → they are in the same direction (both point away from H, toward/from N in same sense) → reinforce
- Statement II says they are in opposite direction in  → false ✗
- In : N–F bond dipoles point toward F; lone pair dipole points away from N → they oppose each other, n

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