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Q.

Which of the following is used as a spraying reagent in paper chromatography?

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a

Copper sulphate solution

b

Sodium chloride solution

c

Ninhydrin solution

d

Concentrated hydrochloric acid solution

answer is C.

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Detailed Solution

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  • Spray reagents allow visualization of the colorless components in paper chromatography. 
  • These reagents are mixtures of chemicals that, when sprayed on the paper and allowed to react, will cause colorless compounds to change to colored compounds for easy detection.
  • Ninhydrin is used as a spraying reagent in paper chromatography.
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