Air Pollution - Unburnt Hydrocarbons

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| By L-ionel
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L-ionel
Community Contributor
Quizzes Created: 15 | Total Attempts: 7,016
| Attempts: 606
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  • 1/5 Questions

    Are unburnt hydrocarbons carcinogenic (cancer-causing)?

    • Yes
    • No
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About This Quiz

This quiz will test you on your understanding of unburnt hydrocarbons.

Air Pollution - Unburnt Hydrocarbons - Quiz

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  • 2. 

    Incomplete combustion of petrol does not produce unburnt hydrocarbons.

    • True

    • False

    Correct Answer
    A. False
    Explanation
    Incomplete combustion of petrol does produce unburnt hydrocarbons. Incomplete combustion occurs when there is a limited supply of oxygen, causing the fuel to not burn completely. This results in the formation of unburnt hydrocarbons, which are released as pollutants into the environment. Therefore, the statement that incomplete combustion of petrol does not produce unburnt hydrocarbons is false.

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  • 3. 

    Unburnt hydrocarbons are not a constituent of photochemical smog.

    • True

    • False

    Correct Answer
    A. False
    Explanation
    Unburnt hydrocarbons are indeed a constituent of photochemical smog. Photochemical smog is formed when sunlight reacts with pollutants such as nitrogen oxides (NOx) and volatile organic compounds (VOCs), including unburnt hydrocarbons, emitted from vehicles, industries, and other sources. These reactions produce a mixture of harmful pollutants, including ozone, which is a major component of photochemical smog. Therefore, the statement that unburnt hydrocarbons are not a constituent of photochemical smog is false.

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  • 4. 

    Is petrol an example of unburnt hydrocarbons?

    • Yes

    • No

    Correct Answer
    A. Yes
    Explanation
    Petrol is indeed an example of unburnt hydrocarbons. Hydrocarbons are compounds made up of hydrogen and carbon atoms, and petrol is a mixture of various hydrocarbons. When petrol is burned, it undergoes combustion and is converted into carbon dioxide and water. However, if petrol is not completely burned, it can release unburnt hydrocarbons into the atmosphere, contributing to air pollution. Therefore, petrol can be considered as an example of unburnt hydrocarbons.

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  • 5. 

    Unburnt hydrocarbons are not organic compounds.

    • True

    • False

    Correct Answer
    A. False
    Explanation
    Unburnt hydrocarbons are organic compounds because they consist of carbon and hydrogen atoms. Organic compounds are defined as compounds that contain carbon-hydrogen bonds, and since hydrocarbons are composed solely of carbon and hydrogen, they fall under this category. Therefore, the statement that unburnt hydrocarbons are not organic compounds is false.

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  • Current Version
  • Mar 22, 2022
    Quiz Edited by
    ProProfs Editorial Team
  • Sep 12, 2009
    Quiz Created by
    L-ionel
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