Chemistry MCQs with answers Page - 42

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Q. Which of the following appeared to be with a significant potential for accumulation through food chains ?

  • (A) DDT
  • (B) Parathion
  • (C) Lindane
  • (D) Carbaryl

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Q. Higher concentration of nitrogen dioxide in atmosphere air causes

  • (A) Cancer
  • (B) Bronchitis
  • (C) Asphyxiation
  • (D) Corrosion

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Q. Which of the following in automobile exhaust can cause cancer?

  • (A) Oxides of nitrogen
  • (B) Carbon monoxide
  • (C) Lead
  • (D) Polyclinic hydrocarbons

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Q. White lung cancer is caused by

  • (A) Asbestos
  • (B) Silica
  • (C) Textiles
  • (D) Paper

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Q. Which of the following is a man-made source of air pollution ?

  • (A) Automobile exhaust
  • (B) Forest fire
  • (C) Bacterial action in soil and swamp areas
  • (D) All of the above

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Q. Oxide of sulphur present in the atmosphere are washed down by rains to cause :

  • (A) Depletion of fossil fuel reserves
  • (B) Eutrophication in lakes
  • (C) Lowering of pH of soil
  • (D) Industrial smog formation

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Q. Supersonic jet causes pollution by thinning of

  • (A) O3 layer
  • (B) O4 layer
  • (C) SO2 layer
  • (D) CO2 layer

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Q. The pollutant responsible for ozone holes is _______

  • (A) CO2
  • (B) SO2
  • (C) CO
  • (D) CFC

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Q. Major gaseous pollutant of the thermal power station is

  • (A) H2 S
  • (B) NH3
  • (C) NO2
  • (D) SO2

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Q. The gas causing acid rain in an industrial area is

  • (A) Carbon dioxide
  • (B) Carbon monoxide
  • (C) Sulphur dioxide
  • (D) Methane

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