91Ó°ÊÓ

Complete the following reactions. (a) \(\mathrm{CH}_{3} \mathrm{CH}=\mathrm{CHCH}_{3}+\mathrm{HBr}\) (b) \(\mathrm{CH}_{3} \mathrm{CH}_{2} \mathrm{CH}=\mathrm{CHCH}_{3}+\mathrm{Br}_{2}\)

Complete the following reactions. (a) \(\mathrm{CH}_{3} \mathrm{CH}_{2} \mathrm{CH}=\mathrm{CHCH}_{2} \mathrm{CH}_{3}+\mathrm{HBr}\) (b) \(\mathrm{CH}_{2}=\mathrm{CHCH}_{2} \mathrm{CH}_{3}+\mathrm{Br}_{2} \longrightarrow\)

What feature is common to all aromatic hydrocarbons?

Write structural formulas for the following compounds. (a) \(1,2,4\)-trimethylbenzene (b) chlorobenzene

Write structural formulas for the following compounds. (a) 2,5 -dichloro-1-ethylbenzene (b) 2 -ethyl-1,3-dimethylbenzene

Write an equation for the reaction of benzene, \(\mathrm{C}_{6} \mathrm{H}_{6}\), with chlorine, \(\mathrm{Cl}_{2}\), in the presence of an \(\mathrm{FeCl}_{3}\) catalyst.

Write an equation for the reaction of benzene, \(\mathrm{C}_{6} \mathrm{H}_{6}\), with chloromethane, \(\mathrm{CH}_{3} \mathrm{Cl}\), in the presence of an \(\mathrm{AlCl}_{3}\) catalyst.

Which of the following compounds are alcohols? (a) \(\mathrm{CH}_{3} \mathrm{OCH}_{3}\) (b) \(\mathrm{CH}_{3} \mathrm{CH}_{2} \mathrm{OH}\) (c) \(\mathrm{CH}_{3} \mathrm{CH}(\mathrm{OH}) \mathrm{CH}_{3}\) (d) \(\mathrm{CH}_{3} \mathrm{COCH}_{3}\) (e) \(\mathrm{CH}_{3} \mathrm{CH}_{2} \mathrm{CHO}\)

Which of the following compounds are alcohols? (a) \(\mathrm{CH}_{3} \mathrm{CHO}\) (b) \(\left(\mathrm{CH}_{3}\right)_{2} \mathrm{C}(\mathrm{OH}) \mathrm{CH}_{3}\) (c) \(\mathrm{CH}_{3} \mathrm{CH}_{2} \mathrm{COCH}_{3}\) (d) \(\mathrm{CH}_{3} \mathrm{CH}_{2} \mathrm{OCH}_{2} \mathrm{CH}_{3}\) (e) \(\mathrm{CH}_{3} \mathrm{CH}_{2} \mathrm{CH}_{2} \mathrm{CH}_{2} \mathrm{OH}\)

An alcohol has the formula \(\mathrm{C}_{4} \mathrm{H}_{9} \mathrm{OH}\). How many isomers can exist for this alcohol?