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General Knowledge · Q314

Practice

Competitive Exams · General Knowledge · question 314

Q314

Iodine can be separated from a mixture of Iodine and Potassium Chloride by

A.
Sedimentation
B.
Filtration
C.
Sublimation
Answer
D.
Distillation

Answer: Option C

Solution

Answer: Option C
Solution:
Iodine is well known to sublime (change from solid to gas without becoming liquid inbetween) 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.