Question

How many vibrational modes are possible for H\textsubscript{2}O?

• A. 2
• B. 0
• C. 1
• D. 3

Hint:

Non-linear molecules: Vibrational modes = \(3N - 6\)

Answer 1

The Correct Option is D

For a non-linear molecule like H\textsubscript{2}O, the number of vibrational modes is given by: \[ 3N - 6 = 3(3) - 6 = 3 \] Hence, H\textsubscript{2}O has three vibrational modes: symmetric stretching, asymmetric stretching, and bending.