environmental chemistry - Category wise Question and Answer Practice Test with Solutions
Question : 27
Which of the following statements about photochemical smog is wrong?
a) It has low concentration of oxidising agent
b) It can be controlled by controlling the release of NO2 , hydrocarbons ozone, etc.
c) It has high concentration of oxidising agents
d) Plantation of some plants like pinus helps in controlling photochemical smog.
Answer »Answer: (a)
Question : 29
Which of the following best describes “jet streams”?
a) Narrow meandering bands of winds which blow in mid latitude near the tropopause and encircle the globe.
b) Wind blowing from sub tropical high pressure belts towards the tropical low pressure belts.
c) Wind system with seas and reversal of direction.
d) Winds blowing from the tropical high pressure belts towards the equatorial low pressure belts.
Answer »Answer: (a)
Question : 30
The statement which is not correct about control of particulate pollution
a) Gravity settling chamber removes larger particles from the air
b) Cyclone collector removes fine particles in the diameter range 5-20 microns
c) In electrostatic precipitator, the particulates are made to acquire positive charge which are then attracted by the negative electrode and removed
d) Wet scrubbers are used to wash away all types of particulates
Answer »Answer: (c)
Particulates acquire negative charge and are attracted by the positive electrode.
IMPORTANT general science mcq EXERCISES
set 1 Online Quiz
Click to Start..general science mcq CATEGORIES
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» Measurement And SI Units
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» Measuring Devices And Scales
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» Mechanics (Mass, Force, Acceleration, Work, Energy, Momentum, Velocity)
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» Force Of Gravity, Solids And Fluids
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» Motion Under Gravity
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» Physical Properties Of Materials
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» Light, Heat, Thermodynamics, Wave Motion, Sound, Optics & Oscillations
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» Electric Current And Magnetism
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» Nuclear Physics And Conductivity
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» Modern And Space Physics, Sources Of Energy
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» General Concepts Of Chemistry
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» Nature Of Matter And Composition
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» Atomic Structure Molecules And Nuclear Chemistry
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» Classification Of Elements, Chemical Bonding, Periodicity In Properties & Physical Transformation
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» Metals, Non Metals, Minerals, Ores, Properties, Uses
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» Alloys, Carbon & Its Various Forms, Hydrogen & Compounds, Sulphur, Nitrogen, Halogen & Inert Gases
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» Acids, Bases, Salts And Metals
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» Hydrocarbon, Alcohol, Polymer, Organic Acid And Explosive Substance
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» Fuel, Food Preservation, Nutrition, Medicine, Detergents And Fertilizers
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» Inorganic Chemistry
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» Organic Chemistry
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» Environmental Chemistry
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» Some Important Man Made Materials
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» Sub Divisions Of Biology
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» Genetics, Evolution Of Life & Ecological Biodiversity
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» Taxonomy
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» Heredity
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» Biofertilizer
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» Biological Classification Cell Tissues And Division
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» Human Anatomy
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» Blood Transport System
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» Digestion And Excretion
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» Photosynthesis
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» Vitamins, Nutrition, Health, Disease And Treatment
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» Endocrine Glands, Hormones
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» Physiology Of Plants, Humans And Animals
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» Reproduction
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» Genetic Engineering And Bio Technology
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