MCQ
Given below are two statements:

Statement-$I$: Since fluorine is more electronegative than nitrogen, the net dipole moment of $\mathrm{NF}_3$ is greater than $\mathrm{NH}_3$.

Statement-$II$: In $\mathrm{NH}_3$, the orbital dipole due to lone pair and the dipole moment of $\mathrm{NH}$ bonds are in opposite direction, but in $\mathrm{NF}_3$ the orbital dipole due to lone pair and dipole moments of $N-F$ bonds are in same direction.  In the light of the above statements. Choose the most appropriate from the options given below.

  • A
    Statement $I$ is true but Statement $II$ is false.
  •  Both Statement $I$ and Statement $II$ are false.
  • C
     Both statement $I$ and Statement $II$ is are true.
  • D
    Statement $I$ is false but Statement $II$ is are true.

Answer

Correct option: B.
 Both Statement $I$ and Statement $II$ are false.
b

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