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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
- When the ore limestone is heated carbon dioxide is given off. This operation
- Heat of formation of H₂O(g) at 25⁰C is -243 kJ,ΔE for the reaction
- Two possible stereo-structures of CH₃CHOHCOOH, Which are optically active are called
- An alkane with a molecular formula C₆H₁₄ reacts with chlorine in the presence
- In a buffer solution containing equal concentration of B⁻ and HB,
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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