Question

suggest sepration technique that can be used to seprate the following mixture in a proper sequence (i) iodine , water and salt (ii) kerosene oil , water and salt​

Answer 1

Answer:

(1) Iodine changes directly from solid to gaseous state on heating.

• The gaseous form of Iodine can be cooled easily to get a pure solid. The remaining components of the mixture are salt and sand.
• Salt is soluble in water and sand is non-water soluble substance that can be separated by the process of filtration.

• The insoluble sand remains in the filter paper while the filtrate contains the dissolved salt.

(2) How can we separate a mixture of two immiscible liquids?

• Pour the mixture of kerosene oil and water in a separating funnel.
• Let it stand undisturbed for sometime so that separate layers of oil and water are formed.
• Open the stopcock of the separating funnel and pour out the lower layer of water carefully.