What is the product of the reaction between ${\text{CH}}_3{\text{CH}}_2\text{Br}$ and aqueous $\text{KOH}$?

Solution

1. Aqueous $\text{KOH}$ provides ${\text{OH}}^{-}$ ions which act as a nucleophile.
2. The reaction is a nucleophilic substitution where ${\text{OH}}^{-}$ replaces the ${\text{Br}}^{-}$ ion.
3. The reaction is ${\text{CH}}_3{\text{CH}}_2\text{Br}+\text{KOH}(\text{aq})\to {\text{CH}}_3{\text{CH}}_2\text{OH}+\text{KBr}$.
4. Hence the answer is (C).