A) \[\underset{\text{2-methyl-3-butanone}}{\mathop{C{{H}_{3}}\underset{\begin{smallmatrix} || \\ O \end{smallmatrix}}{\mathop{C}}\,-\underset{\begin{smallmatrix} | \\ C{{H}_{3}} \end{smallmatrix}}{\mathop{C}}\,H-C{{H}_{3}}}}\,\]
B) \[\underset{2,\,\,3-\text{dimethylpentane}}{\mathop{C{{H}_{3}}\underset{\begin{smallmatrix} || \\ C{{H}_{2}} \end{smallmatrix}}{\mathop{C}}\,H-\underset{\begin{smallmatrix} | \\ C{{H}_{2}}C{{H}_{3}} \end{smallmatrix}}{\mathop{C}}\,H-C{{H}_{3}}}}\,\]
C) \[\underset{\text{2-pentyne}}{\mathop{C{{H}_{3}}-C\equiv C-C{{H}_{2}}-C{{H}_{3}}}}\,\]
D) \[\underset{\text{2-bromo-3-chloro-butane}}{\mathop{C{{H}_{3}}-\underset{\begin{smallmatrix} | \\ Cl \end{smallmatrix}}{\mathop{C}}\,H-\underset{\begin{smallmatrix} | \\ Br \end{smallmatrix}}{\mathop{C}}\,H-C{{H}_{3}}}}\,\]
Correct Answer: A
Solution :
\[\overset{1}{\mathop{C}}\,{{H}_{3}}-\underset{\begin{smallmatrix} || \\ O \end{smallmatrix}}{\overset{1}{\mathop{C}}}\,-\underset{\begin{smallmatrix} || \\ C{{H}_{3}} \end{smallmatrix}}{\overset{3}{\mathop{C}}}\,H-\overset{4}{\mathop{C}}\,{{H}_{3}}\] Correct IUPAC name is 3-methyl-2-butanoneYou need to login to perform this action.
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