InterviewSolution
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InterviewSolution
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Suggest separation technique(s) one would need to employ to separate the following mixtures. (a) Mercury and water (b) Potassium chloride and ammonium chloride (c ) Common salt, water and sand (d) Kerosene oil, water and salt. |
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Answer» (a) Separation can be done with a separating funnel. Mercury being heavy forms lower layer. (b) Sublimation can be used. Ammonium chloride sublimes. (c ) Filtration followed by crystallisation techniques can be used here. Sand can be removed as an insoluble residue upon filtration. Upon evaporating the filtrate in a china dish to about one third followed by slow colling crystals of common salt (NaCl) are formed. (d) Kerosene oil can be separated with a separating funnel. What and salt can be separated either by distillation (water distils) or by evaporation (water evaporates). Salt is left behind as residue. |
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