Question

Which molecule is nonpolar and has a symmetrical shape?
A) NH3
B) HCl
C) H2O
D) CH4

Answer 1

answer : option (D) CH4

explanation: This question is based on VSEPR- theory [ valance shell electron pairs repulsion theory.

according to this theory, bond pairs and lone pairs are introduced geometrical shapes of molecule. you should remember that if lone pairs of any molecule equals zero , it does have symmetrical shape and due to symmetrical shope , there is no dipole moment. means, molecule is non-polar

in case of CH4 , bond pair = 4

and lone pair = 0

so, from above explanation , CH4 has a symmetrical shape and also CH4 is non-polar .

hence, option (D) is correct choice.