Write balanced chemical equations for the preparation of the following gases using dilute sulphuric acid as one of the reactants:
Hydrogen 

Explanation

To prepare hydrogen gas (H₂) using dilute sulfuric acid (H₂SO₄) as one of the reactants, we can follow these steps to write the balanced chemical equation:

### Step 1: Identify the Reactants
We need a metal that can react with dilute sulfuric acid to produce hydrogen gas. A common choice is zinc (Zn).

### Step 2: Write the Unbalanced Equation
The general reaction between a metal and an acid can be represented as:
\[ \text{Metal} + \text{Acid} \rightarrow \text{Salt} + \text{Hydrogen gas} \]
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