Which of the following cannot be separated by sublimation?AIodine and NaClBNaphthalene and SandCIodine and Ammonium chlorideDCamphor and Sodium chloride
Question
Which of the following cannot be separated by sublimation?
- A. Iodine and NaCl
- B. Naphthalene and Sand
- C. Iodine and Ammonium chloride
- D. Camphor and Sodium chloride
Solution
The process of sublimation involves a substance transitioning from a solid state to a gas state without passing through a liquid state. This process is used to separate mixtures that contain a sublimable substance and a non-sublimable substance.
A. Iodine and NaCl: Iodine sublimates, but NaCl does not. Therefore, they can be separated by sublimation.
B. Naphthalene and Sand: Naphthalene sublimates, but sand does not. Therefore, they can be separated by sublimation.
C. Iodine and Ammonium chloride: Both iodine and ammonium chloride sublimate. Therefore, they cannot be separated by sublimation.
D. Camphor and Sodium chloride: Camphor sublimates, but sodium chloride does not. Therefore, they can be separated by sublimation.
So, the answer is C. Iodine and Ammonium chloride cannot be separated by sublimation.
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