A) isopropylmethyl ketone
B) 2-methyl-S-butanone
C) 4-methyli-sopropyl ketone
D) 3-methyl-2-butanone
Correct Answer: D
Solution :
\[C{{H}_{3}}-\overset{\begin{smallmatrix} O \\ || \end{smallmatrix}}{\mathop{\underset{2}{\mathop{C}}\,}}\,-\underset{\begin{smallmatrix} {{|}^{3}} \\ C{{H}_{3}} \end{smallmatrix}}{\mathop{C}}\,H-\underset{4}{\mathop{C{{H}_{3}}}}\,\] 3-methyl butan-2-one or 3-methyl 2-butanone Keto \[(-\overset{\begin{smallmatrix} O \\ || \end{smallmatrix}}{\mathop{C}}\,-)\] functional group is given priority.
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