Hydrofluorocarbons (HFCs)and hydrochlorofluorocarbons (HCFCs)are good substitutes for chlorofluorocarbons (CFCs)because
A)they are also greenhouse gases.
B)C-F bonds will react more easily with hydroxyl radicals, so they are broken down before they reach the stratosphere.
C)C-H bonds will react more easily with hydroxyl radicals, so they are broken down before they reach the stratosphere.
D)they are too heavy to reach the stratosphere.

Question

Quizplus · Accepted Answer

HFCs and HCFCs have C-H bonds, which react more easily with hydroxyl radicals in the lower atmosphere and are broken down before reaching the stratosphere, where they can cause damage to the ozone layer. This makes them better substitutes for CFCs, which have C-F bonds and are more stable in the atmosphere. While HFCs and HCFCs are also greenhouse gases, they have a lower impact on global warming than CFCs.

Hydrofluorocarbons (HFCs)and Hydrochlorofluorocarbons (HCFCs)are Good Substitutes for Chlorofluorocarbons (CFCs)because