The purity of a substance can be identified by:
Correct answer: C. Chromatography
- A. Sublimation
- B. Filtration
- C. Chromatography
- D. Solvent extraction
Explanation
A is incorrect as sublimation purifies solids rather than identify themB is incorrect as filtration separates insoluble solutes from solvents.C is correct as chromatography is a tool to separate different solvents in a solute and their purification.D is incorrect as solvent extraction only extracts solutes,but doesnt identify them.
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About Chromatography
Chromatography separates the components of a mixture through different distributions between a stationary phase and a mobile phase. It covers paper, thin-layer and column chromatography, retention or migration behaviour, the calculation and interpretation of Rf values, and the use of colour or other detection methods to identify substances.
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