Which of the following technique is based on the absorption of light radiation?
Correct answer: D. All the above techniques
- A. Spectrophotometry
- B. Colorimetry
- C. NMR
- D. All the above techniques
Explanation
Spectrophotometry and colorimetry both measure the amount of light absorbed by a substance to determine its concentration. Nuclear Magnetic Resonance (NMR) spectroscopy involves the absorption of radiofrequency radiation by atomic nuclei in a magnetic field.
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About Analytical Chemistry
Analytical chemistry identifies and measures substances using separation and instrumental methods. Chromatography is studied through stationary and mobile phases, retention and Rf values, while spectroscopy connects absorption of electromagnetic radiation with molecular structure and supports qualitative and quantitative analysis through techniques such as UV-visible and infrared spectroscopy.
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