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NEET 2024, Chemistry Q4: Purification Methods

NEET2024Chemistry
Q.

On heating, some solid substances change from solid to vapour state without passing through liquid state. The technique used for the purification of such solid substances based on the above principle is known as

  1. A

    Distillation

  2. B

    Chromatography

  3. C

    Crystallization

  4. D

    Sublimation

Solution

Direct solid-to-vapour conversion on heating (and vapour-to-solid on cooling) is sublimation. The purification technique based on this is also called sublimation.

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