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प्रश्न
Name the chemicals responsible for destruction of the ozone layer. State the main chemical from these chemicals, which is responsible for more than 80% ozone depletion.
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उत्तर
Chemicals responsible for ozone depletion are: [CFCs] chlorofluoro carbons, CR,CL, CH3Br, CCl4, CH4 and nitrous oxide [N2O]
Main responsible chemical is chlorofluorocarbons CFCl, for 80% depletron.
State the man-made applications which make use of that chemical.
Man made application is coolant in refrigeration and A.C.’s
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संबंधित प्रश्न
Explain how, harmful ultraviolet radiations of sunlight are prevented from reaching the earth's surface.
How does ozone layer protect us from harmful effects in the environment?
The gas A is used by most of the animals to obtain energy from food by the process of respiration. When A is acted upon by radiation X, it gets converted into another gas B which is an allotrope of A but poisonous when inhaled. B forms a kind of layer C in the upper atmosphere which absorbs radiations X coming from a source Y and prevent them from reaching the earth. Some chemicals Z released from the various devices on the earth are destroying the layer C slowly. In fact, a hole has already been formed in layer C over the area D of the earth.
(a) What are gases (i) A, and (ii) B? Write their molecular formulae.
(b) Name the layer C.
(c) What are (i) X, (ii) Y, and (iii) Z?
(d) Name the area D.
(e) Name any two human ailments which may be caused by X.
Briefly explain depletion of ozone layer and its effects.
State two effects of ozone depletion.
The chemicals leading to the formation of ozone holes.
Give balanced equations for formation of ozone molecules from oxygen molecules. What type of reaction takes place, during the formation.
Give balanced equation for the following conversion [one or two steps].
A molecule of ozone to two molecules of oxygen gas.
Which of the following radiations is responsible for the conversion of atmospheric oxygen to ozone?
Depletion of ozone is mainly due to
