State the principle involved in separation of solid-solid mixtures by – (a) sieving (b) magnetic separation (c) sublimation.
State the principle involved in separation of solid-solid mixtures by –
(a) sieving
(b) magnetic separation
(c) sublimation.
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(a) Sieving
Principle — Based on the difference in size of the solid particles.
Examples — Mixture of Rice powder and soil, mixture of different sized particles of diamond and of sand.
(b) Magnetic separation
Principle — One component of the mixture is a magnetic substance.
Example — Mixture of iron ore and sand, Mixture of cobalt and lead.
(c) Sublimation Principle — One of the components sublimes on heating.
Example — Mixture of iodine and salt, Mixture of ammounium chloride and sand.
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