Question

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Answer 1

Explanation:

9. a)

The mixture of water and acetone is separated by a process called Fractional Distillation. ... Water is collected in the distillation flask and acteone vapours are condensed to get acetone. Thus the mixture is separated. Here, the principle is the difference in the boiling points of the two miscible liquids.

b)

Chalk powder is a carbonate compound, insoluble in water. Because of this property of chalk powder, it is easy to separate it from water. The mixture containing chalk powder and water is allowed to get filtered. After filtration, the retentate obtained is chalk and the filtrate obtained is water without chalk.

c)

Chlorophyll

Chlorophyll is the primary pigment in plants; it is a chlorin that absorbs yellow and blue wavelengths of light while reflecting green. It is the presence and relative abundance of chlorophyll that gives plants their green color.

10)

1) A true solution is homogeneous in nature whereas a colloidal solution is heterogeneous.

2) The particle size of solvent of true solution is less than 1 nm whereas in a colloidal solution it ranges between 1 nm to 1000 nm.

3) The particles of the true solution are not visible even under ultra microscope wheresas in case of colloidal solution, they are visible.

4) A true solution does not show tyndall effect whereas a colloidal solution shows.

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Answer 2

Answer:

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