Q50 / 180 · COMEDK 2019 · Chemistry

In the Molisch reagent, the substance used is

  • A
    $\beta$-naphthol in alcohol
  • Correct answer
    B
    $\alpha$-naphthol in alcohol
  • C
    Resorcinal in alcohol
  • D
    Resonance in water

Solution

In Molisch's reagent substance used is $\alpha$-napthol dissolved in ethanol. It gives positive test with carbohydrates, nucleic acids and glycoproteins by forming purple-coloured product.

Hence, the correct answer is option: 'B'.

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