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Question
A mixture of iodine and sand can be separated by:
A mixture of iodine and sand can be separated by:
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Solution
The correct option is C sublimation
Iodine is a solid that sublimes. If a mixture of iodine and sand is heated in a beaker, the iodine changes from solid to vapour directly. The vapour changes back to solid directly on a cold surface. The sand is not affected by the heat and remains in the beaker.
Iodine is a solid that sublimes. If a mixture of iodine and sand is heated in a beaker, the iodine changes from solid to vapour directly. The vapour changes back to solid directly on a cold surface. The sand is not affected by the heat and remains in the beaker.
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