`H_2O` has net dipole moment while `BeF_2` has zero dipole moment because

Options

A. (a) `H_2O` molecule is linear while `BeF_2` is bent
B. (b) `BeF_2` molecule is linear while `H_2O` is bent
C. (c) fluorine has more electronegativity than oxygen
D. (d) beryllium has more electronegativity than oxygen

Answer

B

Explanation

`H_2O` have bent structure in which the two O-H bonds are oriented at an angle of `104.5^@` , so water have a net dipole moment whereas `BeF_2` have linear geometry, so the dipole moment of one bond is cancelled by another bond, so it have zero dipole moment.