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Question

True or false?
(a) A mixture of milk and water can be separated by filtration.
(b) A mixture of powdered salt and sugar can be separated by the process of winnowing.
(c) Separation of sugar from tea can be done with filtration.
(d) Grain and husk can be separated with the process of decantation.

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Solution

(a) The given statement is false.
A mixture of milk and water cannot be separated by filtration as both mix well, and filtration is used to separate insoluble impurities.

(b) The given statement is false.
A mixture of powdered salt and sugar can not be separated by the process of winnowing, as both do not have any large weight difference.

(c) The given statement is false.
We do not separate sugar from tea by filtration, as sugar is completely soluble in tea, and hence, cannot be separated from tea by filtration.

(d) The given statement is false.

Grain and husk are separated with the process of winnowing, owing to their difference in weight, and not by decantation.

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Q. True or false?
(a) A mixture of milk and water can be separated by filtration.
(b) A mixture of powdered salt and sugar can be separated by the process of winnowing.
(c) Separation of sugar from tea can be done with filtration.
(d) Grain and husk can be separated with the process of decantation.

Q. State whether the following statements are true or false.

(a) A mixture of oil and water can be separated by filtration.
(b) Water can be separated from salt by evaporation.
(c) A mixture of wheat grains and wheat flour can be separated by sieving.
(d) A mixture of iron filings and rice flour can be separated by a magnet.
(e) A mixture of wheat grains and rice flakes can be separated by winnowing.
(f) A mixture of tea leaves and milk can be separated by decantation.

A mixture of salt and sugar can be separated by the process of filtration.

Q. A mixture of powdered salt and sugar can be separated by the process of winnowing.

Q. State whether the following are true or false.
(a) A mixture of milk and water can be separated by filtration.
(b) A mixture of water and oil can be separated by distillation.
(c) Filtration will separate wheat from husk
(d) Camphor and sand are mixed together. By heating, camphor will sublime and the vapours can be collected. This will leave behind sand.
(e) A mixture of naphthalene and chalk powder has the smell of naphthalene.
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