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Question
In paper chromatography, how are colourless compounds commonly made visible?
Options
By heating strongly
By using ultraviolet light only
By spraying with ninhydrin solution
By adding more solvent
MCQ
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Solution
By spraying with ninhydrin solution
Explanation:
Ninhydrin spray is used to visualize colourless compounds on the paper as coloured spots.
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Chromatography Method > Partition Chromatography
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