The $IUPAC$ name of the compound having structure $CH_3-CH_2-C(=CH_2)-CH(CH_3)-CH_3$ is:

The $IUPAC$ name of $CH_3-CH=CH-COOH$ is

The $IUPAC$ name of the given organic compound is $HC \equiv C-CH=CH-CH=CH_2$.

The $IUPAC$ name of $NC-CH_2-CH_2-COOH$ is

The compound is known by which of the following names?

Write the $IUPAC$ names of the following structures:
$(i)$ $CH_3-CH=CH-CH(Br)-CH_3$
$(ii)$ $CH_2=C(CH_3)-CH(Br)-CH_3$
$(iii)$ $CH_3-CH=C(CH_3)-CH(Br)-CH_3$
$(iv)$ $CH_3-C(CH_3)=CH-CH_2Br$
$(v)$ $CH_3-CH=CH-CH_2Br$
$(vi)$ $CH_2=C(CH_3)-CH_2Br$