Advertisements
Advertisements
Question
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.
Advertisements
Solution
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
APPEARS IN
RELATED QUESTIONS
Ozone depletion is occurring widely in the stratosphere; it leads to an ozone hole caused mainly due to ______.
O2 is converted into O3 by the action of :
(a) infrared radiations
(b) ultraviolet radiations
(c) gamma radiations
(d) cosmic radiations
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.
State the chemicals responsible for ozone layer destruction.
Give Technical Terms:
The chemicals leading to the formation of ozone holes.
Fill in the Blanks:
The ______ is the layer of the atmosphere that contains the protective ozone layer
Ozone is abundant in this layer. Ozone heats this layer as it absorbs from incoming ultraviolet radiation from the sun:
Give balanced equation for the following conversion [one or two steps].
A molecule of ozone to two molecules of oxygen gas.
Global warming is a phenomenon related to ______.
______ was signed in 1987 to control emission of ozone depleting substances.
