Question

Match List-I with List-II. List-I: A. Beer-Lambert law, B. Raman Spectroscopy, C. Fluorescence, D. NMR Spectroscopy. List-II: I. Inelastic Scattering, II. \(A=\varepsilon cl\), III. Emission at longer wavelength, IV. Chemical shift.

• A. A-I, B-II, C-III, D-IV
• B. A-II, B-I, C-III, D-IV
• C. A-II, B-I, C-IV, D-III
• D. A-I, B-II, C-IV, D-III

Hint:

Beer-Lambert law is \(A=\varepsilon cl\), Raman spectroscopy involves inelastic scattering, fluorescence emits longer wavelength, and NMR uses chemical shift.

Answer 1

The Correct Option is B

Concept:
Spectroscopic techniques are used to study molecules by their interaction with electromagnetic radiation.

Step 1: Match Beer-Lambert law.
Beer-Lambert law is written as: \[ A=\varepsilon cl \] So, \[ A \rightarrow II \]

Step 2: Match Raman spectroscopy.
Raman spectroscopy is based on inelastic scattering of light. \[ B \rightarrow I \]

Step 3: Match fluorescence.
Fluorescence involves absorption of light followed by emission at a longer wavelength. \[ C \rightarrow III \]

Step 4: Match NMR spectroscopy.
NMR spectroscopy provides information using chemical shift values. \[ D \rightarrow IV \] Therefore: \[ A-II,\ B-I,\ C-III,\ D-IV \] \[ \therefore \text{Correct Answer is (B)} \]