Question

You are given a mixture of sand , salt and iron fillings. Explain the various methods that you will

use to separate these components from the mixture. short answer

Answer 1

Answer:

Iron is magnetic and the other two not, which means a magnet could be used to attract the iron filings out of the mixture, leaving the salt and sand. Salt is water soluble, while sand is not. ... The salt will dissolve and the sand will not. These differences form the basis for separation of the three materials.

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Answer 2

Answer:

We will use different methods to separate the constituents of the mixture -

(i) Removal of iron filings : Spread the mixture on a paper and roll a powerful horseshoe magnet in it. Scrap off the iron filings from the magnet in a china dish. Repeat the procedure until no iron filings are left in the mixture.

Method used - Magnetic separation

(ii) Removal of sand : Dissolve the mixture in water. The salt dissolves in it, but the sand does not.

Filter the mixture. The sand is left on the filter paper.

The clear common salt solution is collected as a filtrate. Wash and dry the sand.

Method used - Filtration

(iii) Removal of salt or obtaining salt from filtrate : Transfer the filtrate into a beaker and heat it over Bunsen burner. In a few minutes water evaporates leaving behind the common salt.

Method used - Evaporation

Explanation:

So, we have used three different methods to separate a mixture of iron filings, sand and salt.

Hope it helped you.

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