What will happen when .
zinc is reacted with steam and a burning matchstick is brought close to the mouth of the test tube?

Explanation

### Step-by-Step Solution:

1. **Identify the Reactants**: The reaction involves zinc (Zn) and steam (H2O in gaseous form).

2. **Write the Reaction**: When zinc reacts with steam, the chemical reaction can be represented as:
\[ \text{Zn} + \text{H}_2\text{O} \rightarrow \text{ZnO} + \text{H}_2 \]
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