JEE Questions for Chemistry Environmental Chemistry Quiz 2 - MCQExams.com

White lung cancer is caused by
  • Asbestos
  • Silica
  • Paper
  • Textiles
The non-viable particulate is
  • Bacteria
  • Moulds
  • Fungi
  • Dust
UV radiation from sun causes a reaction that produces
  • Carbon monoxide
  • Sulphur dioxide
  • Fluorides
  • Ozone
Ozone layer of stratosphere requires protection from indiscriminate use of
  • Pesticides
  • Atomic explosions
  • Aerosols and high flying jets
  • Baloons
Which of the following statements about polar stratospheric clouds (PSCs) is not correct?
  • Type I clouds are formed at about – 77ºC and contain solid HNO3.3H2O
  • Type II clouds are formed at about – 85ºC and contain some ice
  • A tight whirlpool of wind called Polar Vortex is formed which surrounds Antarctica
  • PSCs do not react with chlorine nitrate and HCl
Addition of phosphate fertilizers into water leads to
  • Increased growth of decomposers
  • Reduced algal growth
  • Increased algal growth
  • Nutrient enrichment (eutrophication)
Domestic waste mostly constitutes
  • Non-biodegradable pollutants
  • Biodegradable pollutants
  • Effluents
  • Air pollutants
Phosphate pollution is caused by
  • weathering of phosphate rocks only
  • Agricultural fertilizers only
  • Phosphate rocks and sewage
  • Sewage and agricultural fertilizers
Match List I with List II and select the correct answer using the codes given below the lists :
Chemistry-Environmental Chemistry-3465.png
  • A = 3, B = 1, C = 4, D = 2
  • A = 2, B = 5, C = 3, D = 1
  • A = 1, B = 3, C = 2, D = 4
  • A = 4, B = 2, C = 1, D = 5
Which of the following is not a herbicide?
  • Sodium chlorate
  • Sodium arsenite
  • Polyphosphate
  • Triazines
Loam soil contains almost equal amounts of
  • Sand
  • Silt
  • Clay, humus, air and water
  • All the above
By green chemistry we mean
  • Producing chemicals of our daily use from greenhouse gases
  • Performing chemical processes which use green plants
  • Performing only those reactions which are of biological origin
  • The use of non toxic reagents and solvents to produce environmental friendly products
Poisonous gas present in the exhaust fumes of car is
  • CH4
  • C2H2
  • CO
  • CO2
About 20 km above the earth there is an ozone layer, which one of the following statements about ozone and ozone layer is true
  • Ozone layer is beneficial to us because ozone cuts out the ultraviolet radiation of the sun
  • The conversion of ozone to oxygen is an endothermic reaction
  • Ozone has a triatomic linear molecule
  • Ozone layer is harmful to us because it cuts out a radiation useful for photosynthesis
Which one of the following is mainly responsible for depletion of ozone layer?
  • Methane
  • Carbon dioxide
  • Water
  • Chlorofluoro carbons
Ozone is formed in the upper atmosphere from oxygen by the action of
  • Ultraviolet rays
  • Cosmic rays
  • Free radicals
  • Nitrogen oxides
  • Thermal radiation from sunlight.
Surface water contains
  • Salt + organic matter
  • Only salt
  • Organic matter
  • Suspended impurity
Gas released during Bhopal tragedy was
  • Potassium isothiocyanate
  • Phosgene
  • Methyl isocyanate
  • Ammonia
Ultra-violet light causes
  • Sticky metaphases
  • Photodynamic action
  • Destruction of hydrogen bonds between complementary DNA strands
  • Formation of pyrimidines
SO2 as an air pollutant affects
  • Cell wall
  • All membrane systems
  • Plasmodesmata
  • Nucleus
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