Show with balanced equation what happens when the 'p-xylene is reacted with concentrated sulphuric acid and the resultant product is fused with KOH'.

Explanation

To solve the question, we will break it down into two main reactions: the reaction of p-xylene with concentrated sulfuric acid and the subsequent reaction of the product with potassium hydroxide (KOH).

### Step 1: Reaction of p-xylene with concentrated sulfuric acid

**Chemical Reaction:**
When p-xylene (C₈H₁₀) is reacted with concentrated sulfuric acid (H₂SO₄), it undergoes sulfonation to form 2,5-dimethylphenylsulfonic acid (C₈H₁₀O₃S). The balanced equation for this reaction is:

\[
...