Molecular Geometry and Polarity Quiz

What is the basis for predicting molecular geometry using the VSEPR theory?

• The number of unpaired electrons in the atom

• The arrangement of atoms in a molecule

• The repulsion between electron pairs in the valence shell

• The total number of protons in the molecule

What is the molecular geometry of CH₄ (Methane)?

• Bent

• Trigonal planar

• Tetrahedral

• Linear

How many lone pairs are present on the central atom in a water (H₂O) molecule?

• 1

• 2

• 3

• 4

Which molecule has a linear geometry?

• H₂O

• CO₂

• NH₃

• CH₄

The geometry of ammonia (NH₃) is:

• Linear

• Trigonal planar

• Tetrahedral

• Trigonal pyramidal

What is the approximate bond angle in a molecule with tetrahedral geometry?

• 90°

• 109.5°

• 120°

• 180°

Which of the following molecules is polar?

• CO₂

• CH₄

• NH₃

• N₂

What type of molecular geometry does BF₃ exhibit?

• Linear

• Trigonal planar

• Tetrahedral

• Bent

Why is the water molecule polar?

• It has polar bonds but symmetrical geometry.

• It has polar bonds and asymmetrical geometry.

• It has nonpolar bonds and symmetrical geometry.

• It has nonpolar bonds but asymmetrical geometry.

Which of the following molecules is nonpolar?

• CH₄

• NH₃

• H₂O

• HF