Question

What is the difference between polar and nonpolar molecules give two examples of each?

Answer 1

Polar molecule in which the difference in electronegativety between the atoms is greater than 0.4 and less than 1.7 , as water molecule the difference in electronegativity is 3-2.1=0.9 so the water is polar molecule , and same NH3, HCl,

The nonpolar molecule , the difference in elctronegativity is equal or less than 0.4 as, CH4 , CO2, O2

Answer 2

polar molecules are the one in which charge separation take place this due to high electronegativity example-- h2o

non polar in which no charge separation takes place and electrons are equally distributed example-- cl2