Question

question 10 of 10
what shape would a molecule with two bound groups and two lone pairs
have?

a. trigonal pyramidal

b. bent

c. tetrahedral

d. linear

Explanation:

To determine the molecular shape, we use VSEPR theory. A molecule with 2 bonded groups (bonding domains) and 2 lone pairs (non - bonding domains) has a total of 4 electron domains. The electron - pair geometry is tetrahedral, but the molecular shape (considering only bonded atoms) is bent.

• Option A: Trigonal pyramidal has 3 bonded groups and 1 lone pair.
• Option C: Tetrahedral has 4 bonded groups and 0 lone pairs.
• Option D: Linear has 2 bonded groups and 0 lone pairs (or other arrangements with linear geometry).
• Option B: Bent is the correct shape for a molecule with 2 bonded groups and 2 lone pairs (e.g., $\ce{H2O}$ has 2 bonded $\ce{H}$ atoms and 2 lone pairs on $\ce{O}$, and its shape is bent).

Answer:

B. Bent