Question

why sublimation method is adopted to separate some mixtures​

Answer 1

Answer:

because some subastances do not get mixed so, sublimation process is took place

Answer 2

Answer:

sublimation is adopted to separate only sublime mixtures (the mixtures which directly changes from gas to solid which is also known as deposition ).

Explanation:

suppose if we take salt and camphor solution in a test tube and put a cotton plug on the tip of the test tube and then start heating it the camphor will get deposited on the walls of test tube . by this method we can separate camphor from salt solution.