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In an automobile engine, (at high temper...

In an automobile engine, (at high temperature) when fossil fuel is burnt, `N_2` and `O_2` combine to yield

A

NO

B

`NO_2`

C

Both (1) and (2)

D

`HNO_3`

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The correct Answer is:
To solve the question regarding the reaction of nitrogen (N₂) and oxygen (O₂) in an automobile engine at high temperatures, we can follow these steps: ### Step-by-Step Solution: 1. **Identify the Reactants**: The reactants in this scenario are nitrogen gas (N₂) and oxygen gas (O₂). 2. **Understand the Conditions**: The question specifies that the reaction occurs at high temperatures, which is typical in an automobile engine. 3. **Determine the Reaction**: At high temperatures, nitrogen and oxygen can react to form nitrogen monoxide (NO). The reaction can be represented as: \[ N_2(g) + O_2(g) \rightarrow 2NO(g) \] 4. **Further Reactions**: The nitrogen monoxide (NO) produced can further react with oxygen in the atmosphere to form nitrogen dioxide (NO₂): \[ 2NO(g) + O_2(g) \rightarrow 2NO_2(g) \] 5. **Identify the Products**: From the reactions above, we can conclude that the products formed from the combustion of fossil fuels in the presence of nitrogen and oxygen are: - Nitrogen monoxide (NO) - Nitrogen dioxide (NO₂) 6. **Final Conclusion**: Therefore, the final answer is that both nitrogen monoxide (NO) and nitrogen dioxide (NO₂) are produced when fossil fuels are burned in an automobile engine at high temperatures. ### Final Answer: The products formed are nitrogen monoxide (NO) and nitrogen dioxide (NO₂). ---
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