Question
Physical Chemistry Question on Rotational, vibrational, electronic and Raman spectroscopy of diatomic and polyatomic molecules
Consider the following six vibrational modes :
symmetric stretching of CO2, O-H symmetric stretching of H2O, stretching of HCl, stretching of H2, N-H symmetric stretching of NH3, and bending of CO2.
Among these modes, if k number of modes are IR active but Raman inactive, l number of modes are IR inactive but Raman active, and m number of modes are both IR and Raman active.
k, l, and m, respectively, are
A
1, 3 and 2
B
3, 1 and 2
C
1, 2 and 3
D
2, 1 and 3
Answer
1, 2 and 3
Explanation
Solution
The correct option is (C) : 1, 2 and 3.