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The charged molecules can be separated by __________

(a) Column chromatography

(b) Ion exchange chromatography

(c) Thin layer chromatography

(d) Affinity chromatography

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This intriguing question originated from Fermentation Products Recovery and Purification topic in chapter Recovery and Purification of Fermentation Products, Effluent Treatment, Bioreactor Design Considerations of Fermentation Technology

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Correct option is (b) Ion exchange chromatography

Explanation: The charged molecules are separated by Ion exchange chromatography. It uses a charged stationary phase to separate the oppositely charged compounds. The oppositely charged particles will be attracted while the particles with the same charge will be eluted first.

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