Against each mixture write down suitable methods of separation. (a) Coloured extracts of grass dissolved in ethanol. (b) Kerosine from Crude oil. (c) Paraffin from water. (d)...

Against each mixture write down suitable methods of separation.

(a) Coloured extracts of grass dissolved in ethanol.
(b) Kerosine from Crude oil.
(c) Paraffin from water.
(d) Iron filings from Sulphur powder.
(e) Ammonium chloride from Sodium chloride.
(f) Seawater, to obtain salt.
(g) Blue Copper Sulphate crystals from aqueous copper sulphate.

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(a) Coloured extracts of grass dissolved in ethanol. - Paper chromatography.
(b) Kerosine from Crude oil. – Fractional distillation
(c) Paraffin from water. - separating funnel
(d) Iron filings from Sulphur powder. – magnet
(e) Ammonium chloride from Sodium chloride. – sublimation
(f) Seawater, to obtain salt. – Evaporation.
(g) Blue Copper Sulphate crystals from aqueous copper sulphate. A- Crystallisation – some of the water must be evaporated for crystals to form on cooling the saturated solution to room temperature.

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Kavungya answered the question on March 25, 2019 at 07:27

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