Question

Which one of the following has the highest dipole moment?

पर्याय

• CH₂Cl₂

• CHCl₃

• CCl₄

Answer 1

CH₂Cl₂

Explanation:

In CH₂Cl₂, the resultant of two C–Cl dipole moments is strengthened by two C–H dipoles, resulting in the highest dipole moment (1.62 D).

In CHCl₃, the resultant of two C–Cl dipoles is opposite the resultant of C–H and C–Cl bonds. Because the latter is expected to be smaller than the former, CHCl₃ has a dipole moment (1.03 D).

CCl₄ has a perfectly symmetrical structure with a net dipole moment of 4C–Cl = 0.