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Chemistry
beginalign H3C-CH=C-CH2-CH3 undersetCH3-CH2-CH2 mathop| endalign Correct IUPAC name is
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Q. $ \begin{align} & {{H}_{3}}C-CH=C-C{{H}_{2}}-C{{H}_{3}} \\ & \underset{C{{H}_{3}}-C{{H}_{2}}-C{{H}_{2}}}{\mathop{|}}\, \\ \end{align} $ Correct IUPAC name is
CMC Medical
CMC Medical 2009
A
3-ethylhex-2-ene
B
3-ethylpent-2-ene
C
3-ethylpent-3-ene
D
3-propylpent-2-ene
Solution:
$ \begin{align} & {{H}_{3}}\overset{1}{\mathop{C}}\,-\overset{2}{\mathop{C}}\,H=\overset{3}{\mathop{C}}\,-C{{H}_{2}}-C{{H}_{3}} \\ & \underset{\begin{smallmatrix} \overset{6}{\mathop{C}}\,{{H}_{3}}\overset{5}{\mathop{C}}\,{{H}_{2}}\overset{4}{\mathop{C}}\,{{H}_{2}} \\ 3-ethylhex-2-ene \end{smallmatrix}}{\mathop{|}}\, \\ \end{align} $