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Chemistry - section - 2
  1. Removal of carbon particles from air involves the principle of

    2. A.

     Precipitation
    B.

     Filteration
    C.

     Electrophoresis
    D.

     Sedimentation

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  2. Physico-chemical characteristics of water in water sources undergo changes due to

    3. A.

     Aquatic macrophytes
    B.

     Auatic fungi
    C.

     Effluents
    D.

     Evapotranspiration

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  3. Sulphur dioxide present in the industrial chimney exhaust causes

    4. A.

     Respiratory and lung disease
    B.

     Reduction in plant's productivity owing to acid rain
    C.

     Corrosion building materials
    D.

     All of the above

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  4. Coating of solid waste with impervious material is known as

    5. A.

     Encapsulation
    B.

     Chemical fixation
    C.

     Landfill
    D.

     Capping

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  5. Taj Mahal is greatly affected due to :

    6. A.

     Tourists
    B.

     Acid rain
    C.

     Deforestation
    D.

     Sound pollution

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  6. High concentration hydrocarbon pollutants in atmospheric air causes

    7. A.

     Cancer
    B.

     Silicosis
    C.

     Respiratory diseases (e.g.asthma)
    D.

     Reduced crop yield

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  7. Which one is not a primary greenhouse gases in the Earth's atmosphere?

    8. A.

     Carbon dioxide
    B.

     Methane
    C.

     Nitrogen
    D.

     Ozone

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  8. Which of the following is secondary air pollutant ?

    9. A.

     Photochemical smog
    B.

     NO2
    C.

     Dust particles
    D.

     SO2

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  9. Sullage water is –

    10. A.

     Waste water released from kitchen
    B.

     Waste water released from toilets
    C.

     Waste water released from factories
    D.

     Waste water released from hospitals

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  10. The gas liberated in the Bhopal gas tragedy was:

    11. A.

     Pheynl isocynate
    B.

     Acetylene
    C.

     Ethylene
    D.

     Methyl isocynate

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