Question

arrange in increasing order of dipole moment-CH3Cl CH2Cl CH3Cl CCl4HF HCl HBr HICH4 HF H2O CH4

Answer 1

Dipole moment depends upon the individual bond moments.It is vector quantity and hence the resultant dipole moment is the vector sum of all bond dipole moment.

Hence among CH₃Cl, CH₂Cl₂, CHCl₃ and CCl₄

CCl₄ < CHCl₃< CH₂Cl₂ < CH₃Cl

Among HF, HCl, HBr, HI

The order is HF >HCl> HBr >HI

This is due to the electronegativity trend i.e. F>Cl>Br> I

Among HF, H2O, CH4 and NH3 will be.

CH4 < NH3 < H2O < H-F