The $IUPAC$ name of $CH_3CH_2OCH(CH_3)_2$ is

The $IUPAC$ name of $CH_3-CH(CH_3)-C(=O)-C(=O)-NHBr$ is

Derive the structure of $(i)$ $2-$Chlorohexane,$(ii)$ Pent$-4-$en$-2-$ol,$(iii)$ $3-$Nitrocyclohexene,$(iv)$ Cyclohex$-2-$en$-1-$ol,$(v)$ $6-$Hydroxyheptanal.

Should $A$ or $B$ be chosen as the principal chain for nomenclature? Why?

Give condensed and bond line structural formulas and identify the functional group$(s)$ present,if any,for:
$(a)$ $2,2,4-$Trimethylpentane
$(b)$ $2-$Hydroxy$-1,2,3-$propanetricarboxylic acid
$(c)$ Hexanedial

The $IUPAC$ name of the following compound is: