The $IUPAC$ name of the compound $CH_2 = CH - CH(CH_3) - CH_3$ is

What is the $IUPAC$ name of the given compound?

Provide the $IUPAC$ names for the following compounds: $CH_3-CH(OH)-CH_2-C(OH)(CH_3)_2$ and $CH_2(CN)-CH(CN)-CH_2(CN)$.

The $IUPAC$ name of the following compound is:

Fill in the blanks:
$(1)$ The $IUPAC$ names of $CH_3COOCH_3$ and $CH_3CH_2COOCH_3$ are ....... and ....... respectively.
$(2)$ ....... isomers of dibromobenzene exist.
$(3)$ ........ is the $IUPAC$ name and ........... is the common name of $C_6H_5OCH_3$ respectively.
$(4)$ The structure of $1-$chloro$-2,4-$dinitrobenzene is shown below.

Write the $IUPAC$ names of the following compounds:
$(1)$ $CH_3(CH_2)_4-CH(CH_2CH(CH_3)_2)-(CH_2)_3CH_3$
$(2)$ $CH_3-CH=CH-CH_2-CH=CH-CH(C_2H_5)-CH_2-CH=CH_2$