Which of the following technique is used for the separation of insoluble particles from liquids ?
Correct answer: A. Filtration
- A. Filtration
- B. Crystallization
- C. Solvent extraction
- D. Chromatography
Explanation
Filtration separates an insoluble solid from a liquid because the liquid passes through the pores while the solid particles are retained. Crystallization separates a dissolved solute, not particles that are already insoluble. Therefore, choosing crystallization confuses dissolved substances with suspended insoluble solids.
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About Properties of Liquids
Liquid behavior depends on intermolecular forces, which produce surface tension, viscosity, capillary action and a definite volume without a fixed shape. The topic also covers vapor pressure, evaporation, boiling point and the effect of temperature and external pressure, while distinguishing evaporation at the surface from boiling throughout the liquid.
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