Consider the following : 1. Aerosols 2. Foam agents 3. Fire retardants 4. Lubricants In the making of how many of the above are hydrofluorocarbons used?
A
Only one
B
Only two
C
Only three
Correct Answer
D
All four
Explanation
Hydrofluorocarbons (HFCs) are used as propellants in **aerosols**, blowing agents in **foam agents**, and as extinguishing agents in **fire retardants**,
Environmental PollutionHydrofluorocarbons (HFCs) ApplicationsHydrofluorocarbons (HFCs)AerosolsFoam agentsFire retardantsLubricantsgreenhouse gases