Question

1. the bond angle in cl₂o is expected to be approximately

120°.
180°.
109.5°.
145°.
90°

Explanation:

First, determine the central atom (O) in Cl₂O. O has 6 valence electrons; it forms 2 single bonds with Cl atoms and has 2 lone pairs. The electron domain geometry is tetrahedral (2 bonding + 2 lone pairs). Lone pairs repel more strongly than bonding pairs, compressing the bonding angle from the ideal tetrahedral 109.5°. Cl atoms are large, reducing repulsion between bonding pairs, so the angle is larger than 109.5° but less than 120°, matching 115°.

Answer:

The option with 115° (the fourth option in the list)