Question

what are the meathods that can be used to seperate the components a mixture made of common salt, ammonium chloride and sand by sublimation write the meathods in order in which they are appllied

Answer 1

step to separate NH4Cl ,NACl and sand

Explanation:

Steps for separation of common salt (sodium chloride):

Take the filterate in a china dish.

Evaporate the filtrate to dryness, where water evaporates leaving behind sodium chloride (common salt) in the china dish (see figure).

CBSE Class 9 Science Practical Skills - Separation of Mixture 4

RESULT

Sand, common salt and ammonium chloride mixture is separated by sublimation, Alteration and ‘ evaporation.

PRECAUTIONS

Heat ammonium chloride carefully as it is volatile.

Fix a cotton plug at the end of the funnel so that vapours of ammonium chloride do not escape.

Moisten the filter paper before filtering.

Wash your hands with soap after completing the experiment.