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Chemistry - section - 2
  1. A powerful eye irritant present in smog is

    2. A.

     Nitric oxide
    B.

     Sulphur dioxide
    C.

     Peroxyacetyl nitrate
    D.

     Carbon dioxide

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  2. Which of the following is not a natural source of air pollution ?

    3. A.

     Volcanic eruptions and lightening discharge
    B.

     Biological decay of vegetable matter
    C.

     Photochemical oxidation of organic number
    D.

     None of the above

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  3. CNG used in automobiles to check pollution, mainly consists of

    4. A.

     CH4
    B.

     CO2
    C.

     N2
    D.

     H2

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  4. What are the major pollutants of cigarette smoke?

    5. A.

     Carbon monoxide and dioxin
    B.

     Carbon monoxide and nicotine
    C.

     Carbon monoxide and benzene
    D.

     Dioxin and benzene

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  5. Which of the following metals is not a pollutant ?

    6. A.

     Mercury
    B.

     Arsenic
    C.

     Lead
    D.

     Aluminium

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  6. Main pollutant present in automobile exhaust is

    7. A.

     CO
    B.

     CO2
    C.

     NO
    D.

     Hydrocarbons

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  7. The liquid waste from kitchens and baths, of residences is known as :

    8. A.

     Domestic sewage
    B.

     Storm water
    C.

     Sullage
    D.

     Refuse

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  8. Most poisonous pollutant in water is

    9. A.

     Zinc
    B.

     Phosphate
    C.

     Arsenic
    D.

     Detergent

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  9. Which of the following can be found as pollutants in the drinking water in some parts of India? Select the correct answer using the code given below.
    (A) Arsenic
    (B) Sorbitol
    (C) Fluoride
    (D) Formaldehyde
    (E) Uranium

    10. A.

     B, D and E
    B.

     A, B, C, D and E
    C.

     A, C and E
    D.

     A and C

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  10. Smog is

    11. A.

     Nothing but black smoke
    B.

     A combination of smoke and fog
    C.

     A liquid particle resulting from vapour condensation
    D.

     A solid particle, e.g., fllyash

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