What is the comparison between the reactivity of alcohols with the length of the R -Group?

The reactivity of alcohols generally decreases as the length of the R-group increases. This is because longer R-groups can hinder the accessibility of the hydroxyl (-OH) group, making it less reactive in nucleophilic substitution and elimination reactions. Additionally, larger R-groups can stabilize the alcohol through steric and electronic effects, further reducing reactivity. Thus, primary alcohols are typically more reactive than secondary and tertiary alcohols.