Question

Match the LIST-I (Spectroscopy) with LIST-II (Application) 

LIST-I	LIST-II
A. Visible light spectroscopy	III. Identification on the basis of color
B. Fluorescence spectroscopy	IV. Identification on the basis of fluorophore present
C. FTIR spectroscopy	I. Identification on the basis of absorption in infrared region
D. Mass Spectroscopy	II. Identification on the basis of m/z ion

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

Hint:

Associate the technique with its core principle:

\textbf{Visible Light} \(\rightarrow\) \textbf{Color}
\textbf{Fluorescence} \(\rightarrow\) \textbf{Fluorophore}
\textbf{Infrared (FTIR)} \(\rightarrow\) \textbf{Infrared Absorption}
\textbf{Mass Spec} \(\rightarrow\) \textbf{Mass/Charge (m/z)}

Answer 1

The Correct Option is C

Match each analytical technique with its application principle.
A. Visible light spectroscopy: This method quantifies light absorption in the visible spectrum. Color arises from this absorption. Therefore, A matches III.
B. Fluorescence spectroscopy: This technique measures emitted light (fluorescence) after exciting a molecule with specific wavelength light. It identifies and quantifies fluorescent substances (fluorophores). So, B matches IV.
C. FTIR spectroscopy: Fourier Transform Infrared (FTIR) spectroscopy identifies chemical bonds by measuring infrared radiation absorption. Consequently, C matches I.
D. Mass Spectroscopy: This method ionizes molecules and separates them by their mass-to-charge ratio (m/z). Therefore, D matches II.
The correct matches are A-III, B-IV, C-I, D-II. This combination is listed in both options (3) and (4).