Incorrect statement about carbon monoxide is :-

Options

A. It is highly soluble in water
B. It burns in oxygen to produce considerabe amount of heat
C. it is toxic having bond order = 3
D. it is found in coal gas, water gas and produces gas

Answer

To determine the incorrect statement about carbon monoxide (CO), we will analyze the properties and characteristics of carbon monoxide based on the information provided.

### Step-by-Step Solution:

1. **Identify the properties of Carbon Monoxide:**
- Carbon monoxide is a colorless, odorless gas that is toxic to humans and animals.
- It is produced during the incomplete combustion of carbon-containing fuels.

2. **Solubility in Water:**
- Carbon monoxide is known to be sparingly soluble in water. This means it does not dissolve well, but it can dissolve to some extent.

3. **Combustion Reaction:**
- When carbon monoxide burns in the presence of oxygen, it produces carbon dioxide (CO2) and releases a considerable amount of heat. The reaction can be represented as:
\[ 2CO + O_2 \rightarrow 2CO_2 + \text{heat} \]
- This indicates that CO is indeed a combustible gas.

4. **Toxicity:**
- Carbon monoxide is toxic as it binds with hemoglobin in the blood more effectively than oxygen, preventing oxygen transport in the body.

5. **Bond Order:**
- The bond order of CO can be calculated based on its molecular structure. CO has a triple bond between carbon and oxygen, which gives it a bond order of 3. This statement is also correct.

6. **Presence in Various Gases:**
- Carbon monoxide is indeed found in coal gas, water gas, and producer gas. These gases are mixtures that include CO as a component.

7. **Conclusion:**
- After analyzing the statements, the only incorrect statement about carbon monoxide is its solubility in water. The correct characterization is that it is sparingly soluble, not highly soluble.

### Final Answer:
The incorrect statement about carbon monoxide is: **"It is highly soluble in water."**

---