The organic compound mixed with ethanol to make it spurious is:

Options

A. Methanal
B. Methanoic acid
C. Methanol
D. Ethanoic acid

Explanation

To solve the question, we need to identify the organic compound that is mixed with ethanol to create a spurious or counterfeit product.

### Step-by-Step Solution:

1. **Understand the question**: The question is asking for an organic compound that, when mixed with ethanol, results in a spurious product.

2. **Identify ethanol**: Ethanol is an alcohol with the molecular formula CH3CH2OH. It is commonly used in beverages and as a solvent.

3. **Consider common adulterants**: In the context of alcoholic beverages, methanol (CH3OH) is a well-known adulterant. Methanol is toxic and can cause serious health issues if consumed.

4. **Mixing ethanol with methanol**: When methanol is mixed with ethanol, it can create a spurious alcoholic beverage, which is dangerous for consumption due to the toxicity of methanol.

5. **Conclusion**: Therefore, the organic compound that is mixed with ethanol to make it spurious is methanol.

### Final Answer:
The organic compound mixed with ethanol to make it spurious is **Methanol**.