Question Detail

CHM 102 Isolation and Purification of Organic Compounds Objective Question
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Question

In vacuum distillation, the pressure is reduced to:
Options
A Increase boiling points
B Decrease boiling points, allowing distillation at lower temperatures
Correct Answer
C Prevent decomposition by removing oxygen
D Increase the distillation rate
Correct Answer

Option B is the correct answer.

Detailed Explanation

Reducing pressure lowers boiling points (boiling point decreases with decreasing pressure). Vacuum distillation is used for high-boiling or heat-sensitive compounds that would decompose at their normal boiling points.

Hint

Lower pressure = lower boiling point.

Question Info

Course: CHM 102
Topic: Isolation and Purification of Organic Compounds
Type: Objective
Difficulty: Not specified
Question 540 of 1999
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