Air pollution is due to the
1. cutting of green plants
2. gases like carbon monoxide, sulphur dioxide etc.
3. smoke given out by factories
4. all of the above
1 Answers
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Excessive amount of carbon dioxide and other green house gases has been emitted to the environment due to
D) Burning of fossil fuels, deforestation, industrialization
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There are 3 isotopes of carbon. Carbon-12, Carbon-13 and Carbon-14. The most abundant carbon isotope is carbon – 12.
Correct option is A) 12.01
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1. (a) Is ammonia more dense or less dense than air? (b) What property of ammonia is demonstrated by the Fountain Experiment? (c) Write the balanced equation for the reaction between ammonia and sulphuric acid. 2. Pick the odd member from the list giving reasons: (a) Ammonia, sulphur dioxide, hydrogen chloride, carbon dioxide. (b) Copper oxide, aluminium oxide, sodium oxide, magnesium oxide. 3. Give reasons for the following : (a) Liquid ammonia is used as a refrigerant in ice plants. (b) Aqueous solution of ammonia is used for removing grease stains from woollen clothes. (c) Aqueous solution of ammonia gives a pungent smell. (d) Aqueous solution of ammonia conducts electricity.
(1) (a) ammonia is less dense than air (b) solubility in water (c) 2NH3 + H2SO4 → (NH4)2SO4 (2) (a) Ammonia → because - NH3 is basic while, SO2,HCl and CO2 are acidic oxides. (b) CuO,...
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Carbon monoxide gas is more dangerous than carbon dioxide gas. Why?
CO combines with haemoglobin to forms a complex entity, carboxyhaemoglobin which is about 300 times more stable than oxyhaemoglobin. In blood, when the concentration of carboxyhaemoglobin reaches 3 -4%, the oxygen-carrying...
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Cock, coal, charcoal, bone charcoal, etc. are non-crystalline allotropes of carbon. These are commonly called amorphous carbon.
Carbon dioxide
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A sample of pure carbon dioxide, irrespective of its source contains `27.27%` carbon and `72.73%` oxygen. The data support
Correct Answer - A Law of constant proportions
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Most organisms cannot use the free form of (a) Oxygen (b) Nitrogen (c) Carbon dioxide (d) Carbon monoxide
Correct option is: (b) Nitrogen
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On heating a mixture of hydrogen and carbon monoxide gases at 300°C in the presence of nickel
Correct option is: (c) methane gas
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Name the following A process which removes carbon dioxide from the air.
Photosynthesis.
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would you please tell me one reason of air pollution yes the smoke from our household activities vehicles factories ete is mainly causing air pollution
“Would you please tell me one reason of air pollution?” “Yes, the smoke from our household activities, vehicles, factories etc. is mainly causing air pollution.”
2 Answers 3 views