Question Detail

CHM 102 Isolation and Purification of Organic Compounds Objective Question
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Question

During recrystallization, if colored impurities are present, what can be added to the hot solution to adsorb them?
Options
A Sodium chloride
B Activated charcoal (decolorizing carbon)
Correct Answer
C Silica gel
D Calcium chloride
Correct Answer

Option B is the correct answer.

Detailed Explanation

Activated charcoal (decolorizing carbon) is added to hot solutions to adsorb colored impurities. It is then removed by filtration before cooling to crystallize the pure compound.

Hint

Removes colored impurities.

Question Info

Course: CHM 102
Topic: Isolation and Purification of Organic Compounds
Type: Objective
Difficulty: Not specified
Question 544 of 1999
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