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Q. |
Iodine can be separated from a mixture of Iodine and Potassium Chloride by – |
A. | sedimentation |
B. | filtration |
C. | sublimation |
D. | distillation |
Answer» C. sublimation | |
Explanation: Iodine is well known to sublime (change from solid to gas without becoming liquid in between) when heated. However sodium chloride has a melting point much higher than that of iodine. Therefore, a mixture of iodine and sodium chloride can be separated by using a sublimation apparatus, with solid iodine collected by condensation on a cold surface. |
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