When water gas is mixed with steam in the presence of iron chromate as catalyst ............. is produced.

Answer

To solve the question about the product formed when water gas is mixed with steam in the presence of iron chromate as a catalyst, we can follow these steps:

### Step-by-Step Solution:

1. **Identify Water Gas Composition**:
Water gas is a mixture of carbon monoxide (CO) and hydrogen gas (H2). Its chemical formula can be represented as:
\[ \text{Water gas} = \text{CO} + \text{H}_2 \]

2. **Understand Steam**:
Steam is the gaseous form of water, which can be represented as:
\[ \text{Steam} = \text{H}_2\text{O} \]

3. **Set Up the Reaction**:
When water gas (CO + H2) is mixed with steam (H2O), the reaction can be represented as:
\[ \text{CO} + \text{H}_2\text{O} \xrightarrow{\text{Fe}_2\text{Cr}_2\text{O}_7} \text{CO}_2 + \text{H}_2 \]
Here, iron chromate (Fe2Cr2O7) acts as a catalyst.

4. **Write the Balanced Equation**:
The balanced chemical equation for the reaction is:
\[ \text{CO} + \text{H}_2\text{O} \rightarrow \text{CO}_2 + \text{H}_2 \]
This indicates that one molecule of carbon monoxide reacts with one molecule of steam to produce one molecule of carbon dioxide and one molecule of hydrogen gas.

5. **Check the Balance**:
To ensure the equation is balanced:
- **Reactants**: 1 Carbon (C), 2 Hydrogens (H), 1 Oxygen (O)
- **Products**: 1 Carbon (C), 2 Hydrogens (H), 2 Oxygens (O)
The equation is balanced as the number of each type of atom is equal on both sides.

6. **Identify the Products**:
From the balanced equation, we can conclude that the products formed are carbon dioxide (CO2) and hydrogen gas (H2).

### Final Answer:
When water gas is mixed with steam in the presence of iron chromate as a catalyst, carbon dioxide (CO2) and hydrogen gas (H2) are produced.

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