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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.
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Topics: Basic Principles of Organic Chemistry
(124)
Subject: Chemistry
(2512)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- Zeolite used to soften hardness of water is, hydrated
- A gas decolourised by KMnO₄ solution but gives no precipitate with ammoniacal cuprous
- What is the approximate percentage of H₂O₂ in a sample labelled as 10 V?
- For the reaction 2SO₃(g) → 2SO₂(g) + O₂(g) the entropy change (ΔG) is
- The method of zone refining of metals is based on the principle of
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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