Consider the following haloalkanes ( 1 ) C H 3 F ( 2 ) C H 3 C l ( 3 ) C H 3 B r ( 4 ) C H 3 I The correct sequence of increasing order of dipole moments is

Step-by-step solution

C H 3 I 1.64 D < C H 3 B r 1.79 D < C H 3 F 1.84 D < C H 3 C l 1.94 D The charge separation in C - X bond decreases in the order C - F > C - C l > C - B r > C - I , due to decrease in the electronegativity as we more from F → C l → B r → I . C H 3 C l has higher dipole moment than C H 3 F , because of larger bond length of C - C l bond. The larger C - C l bond length causes dipole moment ( μ ) = q × d to be larger for C H 3 C l than C H 3 F . In case of other haloalkanes, the effect of larger C - X bond length cann