4-Chlorobut-1-ene with HBr (a)
In this reaction, an alkene is present. Thus, there will be an addition reaction in which the most substituted carbon will get the addition of the nucleophile "". Here, carbon 3 results in 3-bromo-1-chlorobutane.
1-Chlorobut-1-ene with HBr (b)
We additionally have an alkene in this reaction. Thus, there will be an addition reaction in which the most substituted carbon will get the addition of the nucleophile "". Here, carbon 2 creates 2-bromo-1-chlorobutane.
(c) H2O, H+, and 4,4-Dimethylcyclopentene
In this reaction, an alkene is present. Thus, there will be an addition reaction in which the most substituted carbon will get the addition of the nucleophile "". 3,3-dimethylcyclopentan-1-ol is produced in this instance from carbon 3.
Propyne with 2HCl (d)
In this reaction, an alkyne is present. We will therefore experience an additional reaction.
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