Question

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

Answer 1

D.............. CH4

Answer 2

The correct answer is option (D) CH4.

Lets discuss each option to reach the correct answer.

Option (A) NH3

In NH3, nitrogen is negatively charged and hydrogen atoms are positively charged. Hence, the molecule is polar. The molecular shape is trigonal pyramidal.

Option (B) HCl

HCl is polar because chlorine has higher electronegativity than the hydrogen molecules. The shape of the molecule is linear.

Option (C) H20

H2O is a polar molecule. The shape of the molecule is tetrahedral.

Option (D) CH4

In CH4, the sharing of electrons is equal and hence the molecule is non polar.  The shape of the molecule is tetrahedral.