MHT CET · Chemistry · Chemistry in Everyday Life
What type of information is collected using FTIR fourier transform infrared spectroscopy?
- A Morphology of nanomaterial
- B Absorption of functional group
- C Geometry of particles
- D Particle size
Answer & Solution
Correct Answer
(B) Absorption of functional group
Step-by-step Solution
Detailed explanation
1. Morphology of nanomaterial
- FTIR does not provide information about morphology (shape, structure) of nanomaterials. Techniques like SEM or TEM are used for this. This is incorrect.
2. Absorption of functional group
- FTIR identifies functional groups by detecting characteristic absorption bands in the infrared region, such as those for \(-\mathrm{OH},-\mathrm{CH},-\mathrm{NH},-\mathrm{CO}\), etc. This is correct.
3. Geometry of particles
- FTIR does not give information about particle geometry (e.g., spherical or cubic shapes). This is incorrect.
4. Particle size
- FTIR cannot determine particle size. Techniques like DLS (Dynamic Light Scattering) or electron microscopy are used for this. This is incorrect.
- FTIR does not provide information about morphology (shape, structure) of nanomaterials. Techniques like SEM or TEM are used for this. This is incorrect.
2. Absorption of functional group
- FTIR identifies functional groups by detecting characteristic absorption bands in the infrared region, such as those for \(-\mathrm{OH},-\mathrm{CH},-\mathrm{NH},-\mathrm{CO}\), etc. This is correct.
3. Geometry of particles
- FTIR does not give information about particle geometry (e.g., spherical or cubic shapes). This is incorrect.
4. Particle size
- FTIR cannot determine particle size. Techniques like DLS (Dynamic Light Scattering) or electron microscopy are used for this. This is incorrect.
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