Q25 / 120 · VITEEE 2014 · Chemistry

Which of the following pairs give positive Tollen's test?

  • A
    Glucose,sucrose
  • Correct answer
    B
    Glucose, fructose
  • C
    Hexanal,acetophenone
  • D
    Fructose,sucrose

Solution

Aldehydes and $\alpha$-hydroxy ketones give positive Tollen's test. Glucose being a polyhydroxy aldehyde and fructose an $\alpha$-hydroxy ketone give positive Tollen's test.

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

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