The IUPAC name of the following compound is CH2=CH−CH(CH3)2 :
A
1, 1 - Dimethyl - 2 - propene
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B
3 - Methyl - 1 - butene
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C
2 - Vinylpropane
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D
1 - lsopropylethylene
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Solution
The correct option is B 3 - Methyl - 1 - butene The IUPAC name of CH2=CH−CH(CH3)2 is 3-methyl- 1-butene as the parent chain has four carbon atoms with C1=C2(lowest numbering to the double bond) and one methyl substituent at C3.