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  • Arrange the following in the correct order of dipole moment. <img alt="H_3C-F,H_3C-Cl,H_3C-Br,H_3C-I" src="https://learn.careers360.com/latex-image/?H_3C-F%2CH_3C-Cl%2CH_3C-Br%2CH_3C-I" /

Arrange the following in the correct order of dipole moment.

H_3C-F,H_3C-Cl,H_3C-Br,H_3C-I

Option: 1

H_3C-F>H_3C-Cl>H_3C-Br>H_3C-I


Option: 2

H_3C-I>H_3C-CBr>H_3C-Cl>H_3C-F


Option: 3

H_3C-Cl>H_3C-F>H_3C-Br>H_3C-I


Option: 4

H_3C-I>H_3C-CBr>H_3C-F>H_3C-Cl


Answers (1)

best_answer

As we learnt

 

Nature of C-X bond -

 

Carbon atom bear partial positive charge and halogen atom bear negative charge.

- wherein

 

 Dipole Moment=charge x distance between atoms since C-F bond length is too low, so its dipole moment is less than C-Cl bond.

CH3F has highest electronegativity{q} but its size is way too small,that is why it has lesser dipole moment than CH_3Cl,no doubt CH_3Br is bigger in size than CH_3Clbut its charge is very less than CH_3Cl that is why it has less dipole moment and CH3I even lesser.

Therefore, option (3) is correct.

 

Posted by

Gautam harsolia

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