Chemistry

Question Analysis
This question evaluates the student's understanding of VSEPR theory and the relationship between the number of bonding pairs and the resulting molecular geometry.

Key Concept Explanation
Electron arrangement (electron geometry) refers to the spatial arrangement of all valence electron pairs (bonding + lone pairs) around the central atom. 

Option Analysis
1. In VSEPR theory, trigonal planar molecular geometry occurs when the central atom has three electron domains, all bonding pairs and no lone pairs. Therefore, the correct answer is C.
2. The other options are incorrect:
A. 1 bonding pair and 2 lone pairs: A single bonding pair cannot form a defined polyatomic geometry.
B. 2 bondi...