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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) Filtration is a method that can be used to separate a solid-liquid mixture wherein the solid particles are undissolved in the liquid. The mixture of milk and water cannot be separated by filtration so the statement is false.
(b) Winnowing is the process of separating substances based on the difference in weights of the constituent component. There is no much difference in the weights of sugar and salt so they cannot be separated by winnowing. So the statement is false.
(c) Filtration is a method that can be used to separate a solid-liquid mixture wherein the solid particles are undissolved in the liquid. In this case sugar gets dissloved in tea so it cannot be separated by filltration. So the statement is false.
(d) Grains and husk are separated by the process called winnowing. So the statement is false.

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