Q10 of 45 Page 55

Chromatography is the technique which is used for separation of those solutes that:

Chromatography is a technique used in the separation of a mixture into individual components. The different components dissolved by the same solvent travel with different speeds based on the solubility of the components and get separated.

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8

The substances that sublime can be made to liquefy by:

 9

The substances that sublime easily are:

 11

Which of the following statements are true for pure substances?

(i). Pure substances contain only one kind of particles


(ii). Pure substances may be compounds or mixtures


(iii). Pure substances have the same composition throughout


(iv). Pure substances can be exemplified by all elements other than nickel

 12

Rusting of an article made-up of iron is called: