Question

Vibrational spectroscopy involves the transitions falling in the spectral range of ____________

(a) 100-1000 cm^-1

(b) 300-3000 cm^-1

(c) 400-4000 cm^-1

(d) 500-5000 cm^-1

This question was posed to me during an internship interview.

My doubt stems from Vibrational Spectroscopy topic in section Absorption Spectroscopy of Engineering Chemistry I

Answer 1

The correct choice is (c) 400-4000 cm^-1

Best explanation: Vibrational spectroscopy involves the transitions falling in the spectral range of 400-4000 cm^-1 (infrared region).