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NEET2010ChemistryAldehydes and KetonesActual

Following compounds are given A. CH ₃ CH ₂ OH B. CH ₃ COCH ₃ C. D. CH ₃ OH Which of the above compound(s), on being warmed with iodine solution and NaOH , will give iodoform?

Options

  1. AA, C and D
  2. BOnly B
  3. CA, B and C
  4. DA and B

Correct answer

C. A, B and C

Step-by-step solution

Compounds having either group or CH ₃ CHOH - group, give iodoform when warmed with I ₂ and NaOH . Thus, give iodoform when warmed with I ₂ and NaOH . (Remember, NaOI oxidises CH ₃ CH ₂ OH to CH ₃ CHO , thus it gives positive iodoform test.)

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