Environmental Chemistry CBSE Questions & Answers

Environmental Chemistry

This is Chemistry Class 11 Environmental Chemistry CBSE Questions & Answers. There are 15 questions in this test with each question having around four answer choices.

Questions & Answers

1
Which of these reactions in the atmosphere leads to acid rain?
  • A
    Magnesium + oxygen \( \to \) magnesium dioxide
  • B
    Carbon dioxide + hydrogen \( \to \) hydrogen carbonate
  • C
    Sulphur dioxide + water \( \to \) sulphuric acid
    Correct
  • D
    Sulphur + oxygen \( \to \) sulphur dioxide
2
The death of Scandinavian forests was blamed on:
  • A
    The Chernobyl disaster
  • B
    Pollution from Scandinavian power stations
  • C
    Tree surgeons
  • D
    Pollution from UK power stations
    Correct
3
Acid rain does not cause:
  • A
    Global warming
    Correct
  • B
    Lakes with a very low pH
  • C
    Damage to trees
  • D
    Erosion of limestone and marble
4
Sulphur dioxide levels can be reduced by using:
  • A
    Catalytic converters
  • B
    Low sulphur fuels
    Correct
  • C
    More efficient car engines
  • D
    Static electricity to attract it in factory chimneys
5
Which of these atmospheric pollutants is not released by car exhausts?
  • A
    Lead oxide
  • B
    Carbon dioxide
  • C
    Magnesium oxide
    Correct
  • D
    Carbon monoxide
6
Unleaded paint and petrol were introduced because:
  • A
    European Parliament told us to
  • B
    It was cheaper to produce than leaded products
  • C
    Unleaded petrol made cars go faster
  • D
    Lead was proven to affect the brain and cause mental impairment
    Correct
7
Chemical species present in the environment are either naturally occurring or generated by human activities. Their interrelation with the surroundings is called:
  • A
    environmental chemical interactions
  • B
    environmental pollution
  • C
    environmental studies
  • D
    environmental chemistry
    Correct
8
The greenhouse effect is where:
  • A
    Solar panels are attached to the roofs of houses
  • B
    You take gardening too seriously
  • C
    Heat energy is trapped by the atmosphere
    Correct
  • D
    Too many buildings are built from glass
9
The greenhouse effect is thought to be the cause of:
  • A
    Huge tomatoes
  • B
    An increase in global temperature
    Correct
  • C
    An increase in asthma sufferers
  • D
    Skin cancer
10
Global warming will not result in:
  • A
    Unpredictable climate patterns
  • B
    Increasing sea levels
  • C
    Melting of the ice caps
  • D
    Increasing the size of the hole in the ozone layer
    Correct
11
Which of these was an attempt by world governments to specifically address the problem of global warming?
  • A
    The Geneva Convention
  • B
    The CITES Treaty
  • C
    The Kyoto Agreement
    Correct
  • D
    Agenda 21
12
Carbon dioxide and oxygen levels are maintained by:
  • A
    Respiration
  • B
    Photosynthesis
  • C
    Photosynthesis and respiration
    Correct
  • D
    Perspiration
13
The balance of carbon dioxide and oxygen has been upset by:
  • A
    Burning fossil fuels and deforestation
    Correct
  • B
    Large scale deforestation
  • C
    Increasing human population
  • D
    Excessive burning of fossil fuels
14
Deforestation is responsible for:
  • A
    Diversification
  • B
    Salinisation
  • C
    Desertification
    Correct
  • D
    Eutrophication
15
Carbon dioxide in the oceans can be used by:
  • A
    Deep sea divers
  • B
    Phytoplankton
    Correct
  • C
    Fish
  • D
    Zooplankton