Test Index

JAMB Chemistry 2019 Paper

Question : 37

Total: 80

Which of the following pollutants will lead to the depletion of ozone layer?

Solution:

Concept:

Chlorofluorocarbons (CFCs) release chlorine atoms that destroy ozone molecules in the stratosphere.

Explanation:

The ozone layer is depleted mainly by chlorofluorocarbons.

When CFCs rise to the stratosphere, ultraviolet radiation releases chlorine atoms.

These chlorine atoms catalytically break down ozone (

\mathrm{O}_3

) molecules.

Answer:

A. chlorofluorocarbon

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