Which of the following compounds will not give Iodoform reaction?

Step-by-step solution

The iodoform test is given by compounds containing the CH₃CO- group or the CH₃CH(OH)- group. Ethanol is CH₃CH₂OH , which contains the CH₃CH(OH)- group. It gives a positive iodoform test. Isobutyl alcohol is (CH₃)₂CHCH₂OH . This structure does not contain the CH₃CH(OH)- group. Therefore, it does not give the iodoform reaction. 3-methyl-2-butanone is CH₃COCH(CH₃)₂ , which contains the CH₃CO- group. It gives a positive iodoform test. Propan-2-ol is CH₃CH(OH)CH₃ , which contains the CH₃CH(OH)- group. It gives a positiv