Question

5. Describe how you will separate the components of a mixture of iodine, sand and salt
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Answer 1

Answer:

Sublimation is the best method for separating iodine from common salt (NaCl). Since iodine is sublimable, it will change to vapour state directly from solid when heated slightly and the iodine vapours can be collected while common salt remains as such.

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Answer 2

Answer:

First the mixture should be subjected to sublimation process to separate Iodine by heating. Now, the remaining mixture of sand and salt can be separated by solublising the salt in water and subsequent filtration. The residue is sand and filtrate is salt solution. The salt can be recovered by evapouration of water from filtrate.