A major constituent of material is one whose amount in the material is
Correct answer: A. 1% or more
- A. 1% or more
- B. 0.1%
- C. 0.01%
- D. 0.001%
Explanation
In compositional analysis, components are classified by their relative abundance. A major constituent is a component that makes up a significant portion of the total sample, conventionally defined as being present at a concentration of 1% or more.
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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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