Green chemistry means such reactions that-

 

  • Produce colour during reactions.

  • Reduce the use and production of hazardous chemicals.

  • Are related to the depletion of the ozone layer.

  • Study the reactions in plants.

The wrong statement about photochemical smog is-

  •  Photochemical smog causes irritation in eyes.

  • It has a low concentration of oxidizing agents

  • It can be controlled by controlling the release of NO2, hydrocarbon, ozone, etc.

  • Plantation of some plants helps in controlling photochemical smog.

A gas that is not common component of photochemical smog is-

  • Ozone

  • Acrolein

  • Peroxyacetyl nitrate

  • Chlorofluorocarbons

Which one of the following statements regarding photochemical smog is not correct?

  • Carbon monoxide does not play any role in photochemical smog formation

  • Photochemical smog is an oxidising agent in character

  • Photochemical smog is formed through photochemical reaction involving energy

  • Photochemical smog does not cause irritation in eyes and throat

Which oxide of nitrogen is not a common pollutant introduced into the atmosphere both due to natural and human activity?

1. N2O52. NO23. N2O4. NO
  • 1
  • 2
  • 3
  • 4
Which one of the following statements is not true?

  • Concentration of dissolved oxygen below 5 ppm is good for the growth of fish

  • Clean water would have a BOD value of less than 5 ppm

  • Oxides of sulphur, nitrogen and carbon are the most widespread air pollutant

  • pH of drinking water should be between 6.5-8.5

Among the following, the one that is not a greenhouse gas is:

  •   Sulphur dioxide

  •   Nitrous oxide

  •   Methane

  •   Ozone

The phenomenon in which atmospheric gases trap the heat radiations from the sun near the earth’s surface and keeps it warm is known as-

  • Natural greenhouse effect

  • Tyndall effect

  • Heating effect

  • Joule’s effect

The gas that damages the ozone layer is -

  • CFCs 

  • CO2

  • CH4 

  • SO2

Biosphere is

  • In which individual interact to each other

  • By which life originated

  • The name of a bird

  • Organic compound by which life diminishes

Which is not a renewable source

  • Sunlight

  • Coal

  • Water

  • Wind energy

Noosphere is synonyms of

  • Environment

  • Atmosphere

  • Hydrosphere

  • Stratosphere

When biosphere turns into human-dominated environment it is called

  • Noosphere

  • Troposphere

  • Mesosphere

  • Man sphere 

The living organisms on or around the earth constitute

  • Biome

  • Biosphere

  • Community

  • Biocoenosis

Biosphere refers to 

  • Plants of the world

  • Special plants

  • Area occupied by living beings

  • Plants of a particular area

What is the correct sequence of atmospheric layers starting from earth

  • Stratosphere troposphere, mesosphere, thermosphere

  • Troposphere, stratosphere, mesosphere, thermosphere

  • Mesosphere, troposphere, stratosphere, thermosphere

  • Thermosphere, mesosphere, stratosphere, troposphere

A biosphere is composed of 

  • Living organisms

  • Living organisms + Lithosphere

  • Living organisms + lithosphere + atmosphere

  • Living organisms + lithosphere + atmosphere + Hydrosphere

Which of the following is the non conventional source of energy

  • Coal

  • petroleum

  • Electricity from nuclear power plants

  • Solar radiations

The population of India is 15% of the world but its annual energy consumption is only

  • 0.2%

  • 2.0%

  • 10%

  • 25%

Petroleum resource is

  • Renewable

  • Non-renewable

  • Synthetic & biodegradable

  • Infinite & unconventional

The main aim of plant conservation is - 

  • To conserve the necessary ecological activities and life-supporting systems

  • To conserve species diversity and range of genetic material

  • Both the above

  • None of the above

Environmental Planing organization is

  • CSIR

  • CPHERI

  • ICAR

  • NEERI

Which will not cause any atmospheric pollution

  • Hydrogen

  • Sulphur dioxide

  • Carbon dioxide

  • Carbon monoxide

Which of the following is the main factor of water pollution

  • smoke

  • Industrial waste

  • Detergent

  • Ammonia

Which is more important for water pollution

  • Sound

  •  SO2

  • Salts of arsenic

  • Sewage

Which of the following atmospheric pollutants is not produced by the exhaust of motor vehicle in Delhi

  •  SO2

  • Hydrocarbon gases

  • Fly ash

  • CO

Pollution can be controlled by-

  • Sewage treatment.

  • Checking atomic blasts.

  • Manufacturing electrically operated vehicles.

  • All of the above.

If water pollution continues at its present rate, it will eventually :

  • Stop the water cycle.

  • Prevent precipitation.

  • Make oxygen molecules unavailable to water plants.

  • Make nitrate molecules unavailable to water plants.

In cities like Bombay and Calcutta, the major air pollutants are

  • Ozone

  • Carbon monoxide and oxides of Sulphur

  • Hydrocarbons and not air

  • Algal spores and marsh gas

Recent reports of acid rains industrial cities are due to the effect of atmospheric pollution by

  • Excessive release of NO2 and SO2 by burning of fossil fuels.

  • Excessive release of CO2 by burning of fuel like wood and charcoal, cutting of forests and increased  animal population.

  • Excessive release of NH3  by industrial plants and coal gas.

  • Excessive release of CO in atmosphere by incomplete combustion of cock, charcoal and other carbonaceous fuels in pancity of oxygen.

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Practice Chemistry Quiz Questions and Answers