Advertisements
Advertisements
Question
Which aerosols deplete ozone?
Advertisements
Solution 1
Freons, or chlorofluorocarbons (CFCs), are aerosols that accelerate the depletion of ozone. In the presence of ultraviolet radiation, molecules of CFCs break down to form chlorine-free radicals that combine with ozone to form oxygen.
Solution 2
Aerosols of chlorofluorocarbons (CFCs), such as Freon (CCl2F2), destroy the stratosphere’s ozone layer. The following are the reactions that take place.
\[\ce{\underset{Freon}{CF2Cl2} + hv -> CF2\overset{\bullet}{C}l + \overset{\bullet}{C}l}\]
\[\ce{\overset{\bullet}{C}l + O3 -> Cl\overset{\bullet}{O} + O2}\]
\[\ce{Cl\overset{\bullet}{O} + O -> \overset{\bullet}{C}l + O2}\]
APPEARS IN
RELATED QUESTIONS
Complete the equation
PbS + O3 ⟶
Why does O3 act as a powerful oxidising agent?
How is O3 estimated quantitatively?
The two O−O bond lengths in the ozone molecule are equal.
Give a balanced equation for the following reaction:
Ozone is treated with potassium iodide solution.
Explain why:
Ozone acts as a powerful oxidising agent.
Give a reason for the following :
Ozone is thermodynamically less stable than oxygen.
Ozone is a/an _______ molecule and the two O-O bond lengths in ozone are (i) _______-and (ii) _________.
Explain why ozone is thermodynamically less stable than oxygen.
Ozone in the stratosphere is depleted by:
Which of the following is the wrong statement?
Ozone on reacting with KI in a neutral medium produces ______.
What is ozone umbrella?
