Question

Four molecules have carbon as the central atom and hydrogen atoms around it. Which shape would give rise to a polar molecule?

A) Linear

B) Trigonal Planar

C) Bent

D) Tetrahedral

Answer 1

A molecule with four electron groups about the central atom, but only one electron group bonded to another atom, is bent or angular and would give rise to a polar molecule.

Step-by-step explanation:

A molecule with four electron groups about the central atom, but only one electron group bonded to another atom, is bent or angular because there are only two atoms in the molecule. The shape of the molecule is bent or angular, which would give rise to a polar molecule.

For example, water (H2O) is a molecule with a central oxygen atom bonded to two hydrogen atoms. This arrangement gives water a bent shape with a bond angle of approximately 104.5°. The polarity of the O-H bonds in water results in an overall polar molecule.

Answer 2

D) Tetrahedral

Step-by-step explanation:

Hello,

Tetrahedral is a molecular shape that turns out when four bonds and no lone pairs around the central atom in the molecule. The bonded atoms to the central atom lie at the corners of a tetrahedron with 109.5° angles between them. The molecules with an tetrahedral electron pair geometries have
`sp^3` hybridization at the central atom. For instance, both ammonium ion (
`NH_4^+`) and methane (
`CH_4`) have a tetrahedral molecular geometry.

Best regards.