IUPAC name of the CH3−CH=C(CH2CH2CH3)−CH2−CH3 will be:
A
3-ethyl-2-hexene
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B
3-propyl-2-hexene
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C
3-propyl-3-hexene
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D
4-ethyl-hexene
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Solution
The correct option is B 3-ethyl-2-hexene The longest chain has 6 carbon atoms. At C-2 position double bond is present, and at C-3 position ethyl group is present. Hence, the IUPAC name is 3-ethyl-2-hexene.