Question

You are provided with a mixture of naphthalene and sodium chloride. Suggest an activity to separate them with Well labeled diagram

Answer 1

Answer:

We will use the process of sublimation. This is because of the two components, naphthalene is a sublime substance, i.e., it changes directly into gas without passing through liquid state on heating.

Check attachment for diagram. In the diagram, take ammonium Chloride as naphthalene.

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Answer 2

Explanation:

Mixture of naphthalene and sodium chloride is separated by the process of sublimation as naphthalene is a sublimable substance, but sodium chloride does not.

For separating the mixture, take it in a China dish over which an inverted funnel is placed and stem of the funnel is closed with cotton.

Now, heat the mixture, naphthalene being sublimable, sublimes and when its vapours reach at the funnel they get condensed there to give solid naphthalene. Sodium chloride remains as a residue in the China dish.