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NEETChemistryAldehydes and Ketones

Following compounds are given (i) CH ₃ CH ₂ OH (ii) CH ₃ COCH ₃ (iii) (iv) CH ₃ OH Which of the above compound(s) on being warmed with iodine solution and NaOH , will give iodoform?

Options

  1. A(i), (iii) and (iv)
  2. BOnly(ii)
  3. C(i), (ii) and (iii)
  4. D(i) and (ii)

Correct answer

C. (i), (ii) and (iii)

Step-by-step solution

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

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