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NTA Abhyas JEE Main2020ChemistryAldehydes and KetonesPractice

Among the following the one that gives positive iodoform test upon reaction with I 2 and NaOH is

Options

  1. ACH 3 CH 2 CH(OH)CH 2 CH 3
  2. BC 6 H 5 CH 2 CH 2 OH
  3. CPhCHOHCH 3
  4. DCH 3 CH(CH 2 OH)CH 3

Correct answer

C. PhCHOHCH 3

Step-by-step solution

Iodoform test is given by only the compounds containing CH 3 CO - or CH 3 CHOH - group. Ph CH OH CH 3 + 4 I 2 + 6 NaOH ⟶ Δ CHI 3 + PhCOONa + 5 NaI + 5 H 2 O

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