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Glycerine is purified by
Options
(a) vacuum distillation
(b) simple distillation
(c) steam distillation
(d) sublimation
Correct Answer:
vacuum distillation
Explanation:
The compounds which decompose at a temperature below their normal boiling points cannot be purified by distillation under ordinary atmospheric pressure. For such compounds, distillation is carried out under reduced pressure and the process is known as vacuum distillation. Glycerine is one such compound which is purified by this method.
Related Questions: - The method not used in metallurgy to refine the impure metal is
- Which of the following can produce hydrogen from water
- For spontaneous cooling of a hot metal rod (system) in air
- Which one among the following contains a phenolic -OH group
- The gas molecules have r.m.s. velocity of its molecules as 1000 m/s
Topics: Basic Principles of Organic Chemistry
(124)
Subject: Chemistry
(2512)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- The method not used in metallurgy to refine the impure metal is
- Which of the following can produce hydrogen from water
- For spontaneous cooling of a hot metal rod (system) in air
- Which one among the following contains a phenolic -OH group
- The gas molecules have r.m.s. velocity of its molecules as 1000 m/s
Topics: Basic Principles of Organic Chemistry (124)
Subject: Chemistry (2512)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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