Question

Ethane can be prepared from bromoethane by using ______.

Options

• Zn/HСl

• H₂O

• O₂

• dry ether

Answer 1

Ethane can be prepared from bromoethane by using Zn/HСl.

Explanation:

\(\text{Zn}\) and dilute \(\text{HCl}\) react to generate nascent hydrogen (2[H]), which reduces bromoethane down to ethane:

\(\text{C}_{2}\text{H}_{5}\text{Br}+2[\text{H}]\rightarrow \text{C}_{\mathbf{2}}\text{H}_{\mathbf{6}}+\text{HBr}\)