Wood spirit is obtained by catalytic reaction of water gas with hydrogen at `200-300^(@)C`. The catalyst used is:

Options

A. Ni
B. `ZnO-Cr_(2)O_(3)`
C. Cu
D. `Pd-BaSO_(4)`

Explanation

To solve the question regarding the catalyst used in the catalytic reaction of water gas with hydrogen to obtain wood spirit (methanol), we can follow these steps:

### Step-by-Step Solution:

1. **Identify the Reaction**: The reaction involves water gas (which primarily consists of carbon monoxide, CO, and hydrogen, H2) reacting with hydrogen at a temperature of 200-300°C to produce methanol (wood spirit, CH3OH).

2. **Understand the Role of the Catalyst**: A catalyst is a substance that increases the rate of a chemical reaction without undergoing any permanent change itself. In this case, we need to identify which catalyst can facilitate the conversion of carbon monoxide and hydrogen into methanol.

3. **Evaluate the Options**: The question provides several options for catalysts. We will analyze each option to determine which one produces methanol.

- **Option A: Nickel**: When carbon monoxide reacts with hydrogen in the presence of nickel, the primary product is methane (CH4), not methanol. Therefore, this option can be eliminated.

- **Option B: Zinc oxide (ZnO) and Chromium(III) oxide (Cr2O3)**: This combination of catalysts is known to facilitate the reaction of carbon monoxide with hydrogen to produce methanol (CH3OH). This matches the requirement for wood spirit. Thus, this option is a strong candidate.

- **Option C: Copper**: When carbon monoxide reacts with hydrogen in the presence of copper, the product is typically an aldehyde (formaldehyde, HCHO). Therefore, this option can also be eliminated.

- **Option D**: If this option refers to another catalyst that is typically used for producing aldehydes, it can also be eliminated since we are looking for methanol specifically.

4. **Conclusion**: After evaluating all the options, the only catalyst that leads to the formation of methanol from the reaction of water gas with hydrogen is **Zinc oxide and Chromium(III) oxide (Option B)**.

### Final Answer:
The catalyst used for the catalytic reaction of water gas with hydrogen to obtain wood spirit (methanol) is **Zinc oxide and Chromium(III) oxide (Option B)**.

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