CameraIcon
CameraIcon
SearchIcon
MyQuestionIcon
MyQuestionIcon
1
You visited us 1 times! Enjoying our articles? Unlock Full Access!
Question

What is ozone? How is ozone formed? How does ozone layer product us from the harmful effects in the environment? Write the full form of CFC. What harm can they do?

Open in App
Solution

Ozone layer is a layer consisting of ozone molecules which acts as a protective layer for life on the earth.

It protects the earth by absorbing harmful ultraviolet radiations of the sun. These radiations, if reach the earth’s surface, can cause skin cancer.

The ozone layer is continuously formed in the atmosphere because of the action of UV rays on molecular oxygen. The high-energy UV radiations break down O2 molecules present in upper layers of the atmosphere into nascent oxygen.



Then, this free oxygen atom combines with an oxygen molecule to form ozone.



CFC stands for chlorofloro carbon.
The ozone layer is getting depleted by the action of chlorofluorocarbons (CFCs) used as coolant in refrigerators and perfumes. The CFCs are acted upon by UV rays in the stratosphere, liberating the Cl atoms, which act as catalysts to degrade ozone into molecular oxygen.


flag
Suggest Corrections
thumbs-up
14
Join BYJU'S Learning Program
similar_icon
Related Videos
thumbnail
lock
Ozone layer depletion
CHEMISTRY
Watch in App
Join BYJU'S Learning Program
CrossIcon