A) Secondary butyl alcohol
B) Iso-propyi alcohol
C) Diethyl ketone
D) Ethyl alcohol
Correct Answer: C
Solution :
lodoform reaction is given by only those compounds that have either\[C{{H}_{3}}\underset{|}{\mathop{C}}\,=O\]or\[C{{H}_{3}}\overset{|}{\mathop{CH}}\,OH\,group.\] \[\underset{\begin{smallmatrix} \,\,\,\,(sec-butyl\text{ }alcohol \\ gives\text{ }iodoform\text{ }reaction) \end{smallmatrix}}{\mathop{{{C}_{2}}{{H}_{5}}\underset{\begin{smallmatrix} | \\ OH \end{smallmatrix}}{\mathop{CH}}\,C{{H}_{3}}}}\,\] \[\underset{\begin{smallmatrix} \,\,\,(iso-propyl\text{ }alcohol \\ gives\text{ }iodoform\text{ }reaction) \end{smallmatrix}}{\mathop{C{{H}_{3}}\underset{\begin{smallmatrix} | \\ OH \end{smallmatrix}}{\mathop{CH}}\,C{{H}_{3}}}}\,\] \[\underset{\begin{smallmatrix} \,\,\,\,\,\,\,diethyl\text{ }ketone \\ (does\text{ }not\text{ }give\text{ }iodoform \\ reaction) \end{smallmatrix}}{\mathop{{{C}_{2}}{{H}_{5}}\underset{\begin{smallmatrix} |\,| \\ O \end{smallmatrix}}{\mathop{C}}\,{{C}_{2}}{{H}_{5}}}}\,\] \[\underset{\begin{smallmatrix} \,\,\,\,\,\,\,\,ethyl\text{ }alcohol \\ (gives\text{ }iodoform\text{ }reaction) \end{smallmatrix}}{\mathop{\underset{\begin{smallmatrix} | \\ OH \end{smallmatrix}}{\overset{\begin{smallmatrix} CH \\ | \end{smallmatrix}}{\mathop{C{{H}_{3}}CH}}}\,}}\,\]
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