Lane's process is for the preparetion of

Options

A. `H_(2)`
B. `H_(2)O`
C. `H_(2)O_(2)`
D. `D_(2)O`

Answer

**Step-by-Step Solution:**

1. **Understanding Lane's Process**: Lane's process is a method used for the preparation of hydrogen gas. It is important to recognize that this process is specifically designed for producing hydrogen.

2. **Chemical Reaction Involved**: In Lane's process, iron (Fe) is reacted with steam (H2O). The reaction can be represented as follows:
\[ 3Fe + 4H_2O \rightarrow Fe_3O_4 + 4H_2 \]
Here, iron reacts with steam to produce magnetic oxide (Fe3O4) and hydrogen gas (H2).

3. **Identifying the Products**: From the balanced equation, it is clear that the main product of Lane's process is hydrogen gas (H2). The other product, Fe3O4, is a magnetic oxide known as ferrosoferric oxide.

4. **Evaluating the Options**: The question provides four options: hydrogen, water, hydrogen peroxide (H2O2), and deuterium oxide (D2O). Based on the reaction:
- Hydrogen (H2) is produced.
- Water (H2O) is a reactant, not a product.
- Hydrogen peroxide (H2O2) is not formed in this process.
- Deuterium oxide (D2O) is not relevant to this process.

5. **Conclusion**: Therefore, the correct answer to the question "Lane's process is for the preparation of" is hydrogen gas (H2).

**Final Answer**: Hydrogen gas (H2).

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