question_answer

Which one of the following is a non-polar molecule?

A)  \[CC{{l}_{4}}\]                 

B)  \[CHC{{l}_{3}}\]

C)  \[C{{H}_{2}}C{{l}_{2}}\]                               

D)  \[C{{H}_{3}}Cl\]

Correct Answer: A

Solution :

The molecule in which the bond dipoles of all the bonds are cancel out by each other, is called non-polar e.g., \[CC{{l}_{4}}\]. In \[CC{{l}_{4}}\], there is a large      difference    between    the  electronegativity?s of C and but all the four \[C-C1\]bond dipoles cancel each other, hence  it is  a non-polar non-polar molecule.