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JEE Advanced levelOne or more correct optionsDifficulty 3 of 3si043

Which reagents can be used to distinguish benzaldehyde from acetophenone? (more than one may be correct)

  1. ATollens reagent
  2. B2,4-DNP
  3. CFehling's solution
  4. D

Answer: A, D

Benzaldehyde reduces Tollens reagent while acetophenone does not. Acetophenone has and gives iodoform with , while benzaldehyde does not. Fehling's solution is negative for both and both give 2,4-DNP derivatives.
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