MCQ
The $ IUPAC$ name of $C{H_3} - C{H_2} - \mathop {\mathop {C = }\limits_{|\,\,\,\,\,\,} }\limits_{C{H_3}} C{H_2}$ is
  • $2- $ methylbutene $-1$
  • B
    $3-$ methylbutene $-1$
  • C
    Vinyl methylethane
  • D
    Propylethene $-1$

Answer

Correct option: A.
$2- $ methylbutene $-1$
a
While naming, we choose the longest chain as the base chain and double bond is given preference in naming as compared to single bond:

The IUPAC name is $2$ - methyl-$1$-butene.

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{C{H_3} - O - C - C{H_2} - COOH}\\
{||\,\,\,\,\,\,\,\,\,\,\,}\\
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