Question

What is the bond angle between Cl-O-Cl in Cl\(_2\)O\(_7\)?

• A. 109°
• B. 119°
• C. 108°25'
• D. 120°

Hint:

In molecules with a central atom surrounded by four groups, the ideal bond angle is 109.5°, but it can vary depending on lone pairs or the presence of multiple bonds.

Answer 1

The Correct Option is B

In Cl\(_2\)O\(_7\), the molecular geometry around each chlorine atom is tetrahedral due to the bonding with oxygen atoms.
In such a geometry, the bond angle is typically around 109.5°, but due to the presence of lone pairs, the bond angle slightly deviates.
The bond angle in Cl-O-Cl in Cl\(_2\)O\(_7\) is 119°, which is slightly less than the ideal tetrahedral angle due to repulsion between the lone pairs on the oxygen atoms.
Thus, the correct answer is (b).