Question

The correct order of dipole moment is:
(1) CH4< NF3< NH3< H2O (2) NF3< CH4< NH3< H2O
(3) NH3< NF3< CH4< H2O (4) H2O< NH3< NF3< CH4

Answer 1

(1)is the right answer

Answer 2

The correct order of the dipole moment is $CH_4< NF_3< NH_3< H_2O.$

Option (1).

Explanation:

• The correct order is given by ascending order.

• According to the correct order, the dipole moment of $CH_4$ is 0.

• And hence the $CH_4$ came first.

• But, the dipole moment of $NF_3$  is expected to be much larger than $NH_3$.

• But the original value of the Dipole Moment of $NF_3$ is 0.23D while that of $NH_3$  is 1.46D.

• Here D is considered as a Debye

• The dipole moment of water is 1.8546 d.

• The dipole moment of water is greater than all other given so it comes at last.

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