What is the product when CH₃CH₂Br reacts with KCN in aqueous ethanol?
KCN provides CN⁻ , which undergoes nucleophilic substitution with CH₃CH₂Br to form CH₃CH₂CN (propanenitrile).
Ref: NCERT Class 12 Chemistry > Chapter 6: Haloalkanes and Haloarenes > Topic: Nucleophilic Substitution Reactions - SN1 and SN2 Mechanisms