The correct IUPAC name of CH3−C(CH3)=C(C2H5)−CH3 is:
A
1,2 -diethyl butene
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B
2 - ethyl -3- methyl pentene
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C
3 , 4 - dimethyl hex -3- ene
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D
2 , 3 - dimethyl pent -2- ene
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Solution
The correct option is D 2 , 3 - dimethyl pent -2- ene The correct IUPAC name is 2,3-dimethyl pent-2-ene. In this structure, the longest chain contains 5 carbon atoms and two branched methyl groups.