Ethyl bromide reacts with alcoholic solution of KCN and AgCN to give different products having same molecular formula. These further react with other reagents to form different products.
How will you convert ethyl bromide into N-methyl aminoethane? Give reaction.

Explanation

To convert ethyl bromide into N-methyl aminoethane, we can follow these steps:

### Step 1: Reaction of Ethyl Bromide with Alcoholic KCN
- **Reaction**: Ethyl bromide (C2H5Br) is treated with an alcoholic solution of KCN.
- **Mechanism**: KCN dissociates into K⁺ and CN⁻. The CN⁻ acts as a nucleophile and attacks the ethyl bromide, leading to the formation of ethyl cyanide (also known as propionitrile).

\[
\text{C}_2\text{H}_5\text{Br} + \text{KCN} \rightarrow \text{C}_2\text{H}_5\text{CN} + \text{KBr}
...