Q9 of 45 Page 55

The substances that sublime easily are:

Sublimation is the process of conversion of a substance from solid state to gaseous state without entering the liquid state. The substances which are sublimable are highly volatile in nature.

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7

Which of the following is an aqueous solution?

 8

The substances that sublime can be made to liquefy by:

 10

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

 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