Advertisements
Advertisements
Question
State the role of chlorofluorocarbons in ozone destruction or depletion [no equations required].
Advertisements
Solution
Roll of chlorofluorocarbons in ozone destruction : Chlorofluorocarbons are decomed by U.R. rays and liberate highly reactive free CF radical. This free ladical reacts with ozone to form Cl0[g]. This causes ozone depletion. The Cl free radicals initiate and catalyse a chain reaction – capable of breakdown of over 1,00,000 ozone molecules resulting in ozone depletion.
APPEARS IN
RELATED QUESTIONS
Why is damage to the ozone layer a cause for concern? What steps are being taken to limit this damage?
Explain how, harmful ultraviolet radiations of sunlight are prevented from reaching the earth's surface.
Write the harmful effects of ozone depletion.
O2 is converted into O3 by the action of :
(a) infrared radiations
(b) ultraviolet radiations
(c) gamma radiations
(d) cosmic radiations
State the chemicals responsible for ozone layer destruction.
Is ozone depletion related to global warming?
What is the difference between stratospheric and ground level ozone?
Give balanced equation for the following conversion [one or two steps].
Oxygen to ozone gas by photolysis.
Acid rain is caused by the oxides of ______.
Gas A, found in the upper layers of the atmosphere, is a deadly poison but is essential for all living beings. The amount of this gas started declining sharply in the 1980s.
- Identify Gas A. How is it formed at higher levels of the atmosphere?
- Why is it essential for all living beings? State the cause for the depletion of this gas.
