Question Detail

CHM 102 Isolation and Purification of Organic Compounds Objective Question
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Question

The principle of crystallization relies on the fact that:
Options
A Compounds decompose at high temperature
B Solubility of most solids increases with temperature
Correct Answer
C Solubility of most solids decreases with temperature
D Impurities always have higher solubility
Correct Answer

Option B is the correct answer.

Detailed Explanation

Crystallization uses the fact that most solids are more soluble in hot solvent than in cold solvent. Upon cooling, the solution becomes supersaturated and the pure compound crystallizes.

Hint

Hot solvent holds more solute.

Question Info

Course: CHM 102
Topic: Isolation and Purification of Organic Compounds
Type: Objective
Difficulty: Not specified
Question 525 of 1999
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