The IUPAC name of CH_3-CH_2-C(CH_3)=CH_2 is | vedclass

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(A) To determine the $IUPAC$ name,follow these steps:$1$. Identify the longest carbon chain containing the double bond. The longest chain has $4$ carb

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$2-$methylbut$-1-$ene

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(A) To determine the $IUPAC$ name,follow these steps:$1$. Identify the longest carbon chain containing the double bond. The longest chain has $4$ carbon atoms,so the parent alkane is butane.$2$. Number the chain starting from the end that gives the double bond the lowest possible locant. Numbering from the right,the double bond starts at carbon $1$.$3$. Identify substituents. There is a methyl group at position $2$.$4$. Combining these,the name is $2-$methylbut$-1-$ene.

Column $I$ (Structure)	Column $II$ ($IUPAC$ Name)
$(A)$ $CH_3-CH=CH-CH_2Br$	$(p)$ $1$-Bromobut-$2$-ene
$(B)$ $CH_2=C(CH_3)-CH_2Br$	$(q)$ $3$-Bromo-$2$-methylpropene
$(C)$ $CH_3-C(CH_3)=CH-CH_2Br$	$(r)$ $4$-Bromopent-$2$-ene
$(D)$ $CH_3-CH=CH-CH_2CH_2Br$	$(s)$ $1$-Bromo-$2$-methylbut-$2$-ene

The $IUPAC$ name of $CH_3-CH_2-C(CH_3)=CH_2$ is

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