Multiple choice

Which one of the following statements is/are not false?

  1. The dipole moment of CH3Cl is smaller than that of CH3F.

  2. H2O molecule is linear.

  3. All molecules with polar bonds have dipole moment.

  4. pi-bond is formed by the linear overlapping of p-orbitals.

  5. sp3 hybrid orbitals have equal s and p character.

Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

F is more electronegative than Cl, so C-F bond is more polar than C-Cl bond. Thus, dipole moment of CH3F is expected to be greater than that of CH3Cl. But the bond length of the C-Cl bond is greater than the C-F bond and hence, the dipole moment of CH3F is smaller.