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Difference in density is the basis of (a) Ultra filtration (b) Molecular sieving (c) Molecular attraction (d) Gravity separation |
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Answer» Difference in density Is the basis of Gravity Separation. Gravity seperation depends on specific gravity ( ratio of densities of substance divided by densities of water) So difference in density is the basis of gravity seperation. Correct answer is (d) Gravity Separation Explanation: In case of ultrafiltration, it is particle size of micron sizes present in liquid or gas, or vapor or air which when allowed to pass .through ultrafiltration media of defined porosity in microns, are getting filtered and the fluid is getting clear off those particles. Molecular sieving: permeability of molecular sieve membranes based on the size and shape of the molecules in 3 dimensions and also follows osmotic pressures of solutions closely calculated by Vant Hoffs Law. Molecular Attraction: mainly exchange of cations to anions amongst given two molecules, usually in liquids in normal case. |
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