Multiple choice

In isopycnic centrifugation, the molecules are separated on the basis of density. The compound used in isopycnic centrifugation of various types of DNA is

  1. Caesium carbonate

  2. Caesium chromate

  3. Caesium chloride

  4. Caesium fluoride
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C Correct answer
Explanation

Its crystal structure forms a major structural type where each caesium ion is coordinated by 8 chlorine ions.Caesium chloride is widely used in isopycnic centrifugation for separating various types of DNA. It is a reagent in analytica  l chemistry, where it is used to identify ions by the colour and morphology of the precipitate.

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