A) acetaldehyde
B) 3-methyl-2-butanone
C) iso-butyl alcohol
D) acetophenone
Correct Answer: C
Solution :
Compounds containing either \[\text{C}{{\text{H}}_{3}}\overset{O}{\mathop{\overset{||}{\mathop{C}}\,}}\,-\]group or \[C{{H}_{3}}\underset{OH}{\mathop{\underset{|}{\mathop{CH}}\,}}\,-\] group give yellow coloured compound, iodoform, when treated with \[{{\text{I}}_{\text{2}}}\]and NaOH. \[\text{C}{{\text{H}}_{3}}COC{{H}_{3}}+3{{I}_{2}}+4NaOH\xrightarrow{{}}\] \[\underset{\text{iodoform}}{\mathop{CH{{I}_{3}}}}\,+C{{H}_{3}}COONa+3{{H}_{2}}O+3NaI\]
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