Give balanced equations for the following reaction :
Action of heat on a mixture of sodium chloride and concentrated sulphuric acid.

Explanation

To balance the reaction between sodium chloride (NaCl) and concentrated sulfuric acid (H₂SO₄) upon heating, we can follow these steps:

### Step 1: Write the Reactants
The reactants in this reaction are sodium chloride (NaCl) and concentrated sulfuric acid (H₂SO₄).

### Step 2: Identify the Products
When sodium chloride reacts with concentrated sulfuric acid, the products formed are sodium bisulfate (NaHSO₄) and hydrochloric acid (HCl).

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