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CBSE Class 12-science Answered

Distinguish between polar and non-polar molecules. Give two examples of each.
Asked by Topperlearning User | 23 Apr, 2015, 11:28: AM
answered-by-expert Expert Answer

Molecules in which the centres of positive and negative charges are separated even when there is no electric field are called polar molecules. Such molecules have a permanent dipole molecule. 

 
Example: HCl, H­2O
 
 
Molecules in which the centres of positive and negative charges coincide in the absence of electric field are called non-polar molecules. Such molecules do not have permanent dipole movement.
 
Example: H2, CO2
 
Answered by | 23 Apr, 2015, 13:28: PM
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