Question

Which molecular geometry corresponds to an angle of approximately 109 degrees?

a) Trigonal planar
b) Bent geometry
c) Linear
d) See-saw

Answer 1

The molecular geometry that corresponds to an angle of approximately 109 degrees is Bent geometry.

Step-by-step explanation:

The molecular geometry that corresponds to an angle of approximately 109 degrees is b) Bent geometry.

When a molecule has a bent molecular geometry, it means that it has a central atom surrounded by two bonded atoms and one or two lone pairs. This arrangement results in a bond angle of approximately 109 degrees, which is slightly less than the ideal bond angle of 120 degrees for a trigonal planar geometry.

One example of a molecule with a bent geometry and an angle of approximately 109 degrees is water (H2O). In water, the oxygen atom is the central atom, bonded to two hydrogen atoms and having two lone pairs.