Animal charcoal adsorbs the coloured_________________?
Correct answer: A. impurities
- A. impurities
- B. crystals
- C. solvents
- D. both A & B
Explanation
Animal charcoal is an adsorbent that removes coloured impurities from a hot solution by holding their molecules on its large surface. Students may choose crystals because charcoal is used during crystallization, but good crystals should remain in solution and should not be adsorbed as the unwanted material.
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About Crystalline Solids
Crystalline solids contain particles arranged in a regular repeating lattice described by a unit cell. Their study includes coordination number, packing efficiency, density, anisotropy, cleavage, polymorphism and common crystal systems, along with ionic, molecular, covalent network and metallic crystals. Crystalline order differs from the random arrangement of amorphous solids.
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