Q314
Iodine can be separated from a mixture of Iodine and Potassium Chloride by
A.
Sedimentation
B.
Filtration
C.
Sublimation
AnswerD.
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.