Indigo exists as a natural blue dye. Alizarin exists as a synthetic red dye.
Which of the following statements is true ? Indigo - blue is a natural dye. Alizarin is a synthetic dye.
Asked in MPSC CS Prelims 2014 · Topic: Organic Chemistry (Aliphatic and Aromatic Hydrocarbons: Nomenclature, preparation, reactions of alkanes, alkenes, alkynes, benzene and its derivatives; concept of aromaticity.)
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