Test Chapter 10

The VSEPR model is based on:

• Attraction between nuclei

• Repulsion between electron pairs

• Bond polarity only

• Overlap of atomic orbitals

The molecular geometry of BeCl₂ is:

• Bent

• Trigonal planar

• Linear

• Tetrahedral

What is the bond angle in CH₄?

• 90°

• 109.5°

• 120°

• 180°

Which has a trigonal bipyramidal geometry?

• SF₆

• PCl₅

• CO₂

• H₂O

In VSEPR, which repulsion is strongest?

• Bond–bond

• Lone–bond

• Lone–lone

• All equal

A molecule with 4 electron groups and 2 lone pairs has what shape?

• Linear

• Tetrahedral

• Bent

• Trigonal planar

Which molecule is nonpolar?

• H₂O

• CO₂

• NH₃

• CHCl₃

The dipole moment depends on:

• Number of protons

• Distance between nuclei

• Electronegativity difference & geometry

• Hybridization only

Which molecule has sp hybridization?

• CO₂

• BF₃

• CH₄

• SF₆

What is the hybridization of the central atom in NH₃?

• sp

• sp²

• sp³

• sp³d