Question

In a science practical exam,John was given a mixture of nails, pebbles, camphor and salt. Write the steps to separate the components of this mixture

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Answer 1

Answer:

Camphor, common salt and iron nails are separated from their mixture by Sublimation and Magnetism.

Explanation:

Camphor is sublimable. Hence even if a small amount of heat is given it sublimes and changes into vapour form.

These vapours are then condensed and collected in a separate flask.

The remaining salt and iron nails are then brought close to a magnet.

The iron nails are attracted towards the magnet, whereas salt doesn’t.

This pull inside the magnetic field separates the iron nails from the salt.

Sublimation is the change of phase directly from solid to gas.

Magnetism is the pull of the magnets towards any metallic body by the generated magnetic field.