Chemistry
Name the common refrigerant. How does it deplete ozone layer ?
Pollution
2 Likes
Answer
The main refrigerants used are Freon chlorofluorocarbons (CFC). They deplete ozone layer and contribute to global warming. The chlorofluorocarbons are decomposed by ultraviolet rays to highly reactive chlorine which is produced in the atomic form.
The free radical [Cl] reacts with ozone and chlorine monoxide is formed.
Cl + O3 [ozone] ⟶ ClO + O2
This causes depletion of ozone. Chlorine monoxide further reacts with atomic oxygen and produces more free radicals.
ClO + O ⟶ Cl + O2
Again this free radical [Cl] destroys ozone, and the process continues thereby giving rise to ozone depletion.
Answered By
1 Like
Related Questions
State the elements of group 17. What are they called and why ?
Define.
(i) Ionisation potential
(ii) Electron affinity
How do they vary in VII A group or IIIrd period.
Draw the structures of,
(i) an alcohol with 2 carbon atoms
(ii) an alkyne with 3 carbon atoms
Give their IUPAC names.
Write the equations for the following and name the products formed.
(i) Ethyl alcohol reacts with sulphuric acid at 170°C.
(ii) Acetic acid reacts with conc. sodium hydroxide solution.
(iii) Acetic acid reacts with potassium hydrogen carbonate.