Question

31 2
| Which methods of separation would you use to separate the
following substances?
(12 Sodium chloride from the aqueous solution of sodium chloride,
(2) Wheat qraing foom hask.
(3) Oil from wateo
142 Different coloured particles from the extract of petals
I of flower.

Answer 1

Answer:

1. To extract Sodium metal from NaCl, you must use electrolysis. Electrolysis involves passing electric current through a molten chemical or a chemical in a liquid state. Current travels from the anode to the cathode, separating Sodium from Chlorine.

2. Winnowing is the method of separating husk from grains with the help of wind. Husk is very light whereas wheat grains are heavy.

3. To separate a mixture of kerosene oil and water. You can also apply Paper Chromatography and simple distillation process. Centrifugal separation is another process of separating two fluids with contrast in densities.

hope this will help u:)

Answer 2

Answer:

1) Sodium chloride from the aqueous solution of sodium chloride is separated by the technique of Electrolysis

2) Wheat grains from husk – Winnowing

3) oil from water is separated by the technique of Separating funnel