Which do you think will react with HBr more quickly, hex-3-ene or 3-methylpent-2-ene?

When the following molecule is reacted with one equivalent of HBr, only one double bond reacts to form the product despite having two carbon–carbon double bonds. Explain why.

When 2-chloro-4-methylpent-2-ene reacts with HCl, it selectively produces 2,2-dichloro-4-methylpentane rather than 2,3-dichloro-4-methylpentane. Explain.

Which of the following alkenes can be used to synthesize the alkyl chloride shown below?

Provide the best alkene that can be used to synthesize the alkyl chloride shown below.

Draw the major product formed from the following addition reactions:

Show the stereoisomers formed from the reactions shown below:

(i) (E)-4-ethylhept-3-ene + HCl

(ii) cis-but-2-ene + HCl