In Bosch's process, which gas is utilised for the production of hydrogen gas

Options

A. Coal gas
B. Water gas
C. Producer gas
D. None of these

Answer

To solve the question regarding which gas is utilized for the production of hydrogen gas in Bosch's process, we can follow these steps:

### Step-by-Step Solution:

1. **Understand Bosch's Process**: Bosch's process is a method for producing hydrogen gas. It involves a chemical reaction that typically uses carbon monoxide and steam.

2. **Identify the Reaction**: The reaction can be represented as follows:
\[ CO + H_2O \xrightarrow{\text{catalyst}} CO_2 + H_2 \]
Here, carbon monoxide (CO) reacts with steam (H2O) in the presence of a catalyst (usually iron oxide, Fe2O3, or chromium oxide, Cr2O3) to produce carbon dioxide (CO2) and hydrogen gas (H2).

3. **Determine the Source of Hydrogen**: In Bosch's process, the gas that is primarily utilized to produce hydrogen gas is water gas. Water gas is a mixture of hydrogen and carbon monoxide, which is produced by passing steam over hot carbon (coke).

4. **Conclusion**: Based on the reaction and the understanding of the process, we can conclude that the gas utilized for the production of hydrogen gas in Bosch's process is **water gas**.

5. **Select the Correct Option**: Among the options provided (coal gas, water gas, producer gas, or none of these), the correct answer is **water gas**.

### Final Answer:
The gas utilized for the production of hydrogen gas in Bosch's process is **water gas**.

---