Chemistry Question on Organic Chemistry- Some Basic Principles and Techniques

Question

The major product obtained when ethanol is heated with excess of conc. $H_2SO_4$ at 443 K is

Answer 1

Solution

When ethanol is heated with excess concentrated $\text{H}_2\text{SO}_4$ , it undergoes dehydration, resulting in the elimination of water molecules and the formation of an alkene. In this case, ethanol $\text{(C}_2\text{H}_5\text{OH)}$ loses a water molecule $\text{(H}_2\text{O)}$ to form ethene $\text{(C}_2\text{H}_4)$
The reaction can be represented as follows:
$\text{C}_2\text{H}_5\text{OH} \rightarrow \text{C}_2\text{H}_4 + \text{H}_2\text{O}$
Therefore, the major product obtained under these conditions is ethene (option B).