Question

core - question # 7
which of the following refrigerants damages stratospheric ozone?
a hfos
b hfcs
c hcfcs
d ammonia

Explanation:

HCFCs (hydro - chlorofluorocarbons) contain chlorine atoms. When released into the atmosphere, they can reach the stratosphere and break down ozone molecules. HFOs and HFCs do not contain chlorine atoms that can catalytically destroy ozone in the stratosphere. Ammonia is not an ozone - depleting substance.

Answer:

C. HCFCs