Question

Match List-I with List-II.

List - I		List - II
A.	SEM	I.	Crystal structure
B.	TEM	II.	Optical absorption
C.	XRD	III.	Surface morphology
D.	UV-Visible Spectroscopy	IV.	Internal microstructure

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

Hint:

SEM is for surface morphology, TEM is for internal microstructure, XRD is for crystal structure, and UV-Visible spectroscopy is for optical absorption.

Answer 1

The Correct Option is A

Concept:
Different characterization techniques give different information about materials such as structure, morphology, microstructure and optical properties.

Step 1: SEM.
Scanning Electron Microscopy is mainly used to observe surface morphology. \[ A\rightarrow III \]

Step 2: TEM.
Transmission Electron Microscopy is used to study internal microstructure at very high resolution. \[ B\rightarrow IV \]

Step 3: XRD.
X-ray diffraction is used to identify crystal structure, crystallinity and lattice parameters. \[ C\rightarrow I \]

Step 4: UV-Visible spectroscopy.
UV-Visible spectroscopy is used to study optical absorption and band gap related optical behaviour. \[ D\rightarrow II \] Therefore: \[ A-III,\ B-IV,\ C-I,\ D-II \] \[ \therefore \text{Correct Answer is (A)} \]