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The best method for the separation of naphthalene and benzoic acid from their mixture is
Options
(a) distillation
(b) sublimation
(c) chromatography
(d) crystallisation
Correct Answer:
sublimation
Explanation:
Sublimation method is used for those organic substances which pass directly from solid to vapour state on heating and vice-versa on cooling.e.g.benzoic acid, naphthalene,camphor,anthracene, etc.Naphthalene is volatile and benzoic acid is nonvolatile due to the formation of the dimer.
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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
- A zinc rod is place in 0.095 M solution of zinc sulphate at 298 K, the potential
- Among K, Ca,Fe and Zn the element which can form more than one binary compound
- The correct order of ionisation energy for comparing carbon, nitrogen and oxygen
- In the manufacture of sulphuric acid by contact process, Tyndall box is used to
- In steam distillation of toluene, the pressure of toluene in vapour is
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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