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?
This questions was previously asked in
UPSC CSP Previous Year Paper (2023)
Only one
Incorrect AnswerOnly two
Incorrect AnswerOnly three
Incorrect AnswerExplanation:
Hydrofluorocarbons (HFCs) are man-made compounds that are used in various industrial applications. Historically, they've been utilized in:
Aerosols: As propellants.
Foam agents: In the production of foams.
Fire retardants: To suppress, reduce, or delay the combustion of materials.
Lubricants: Especially in refrigeration systems.
While HFCs became popular as they were introduced to replace ozone-depleting substances like CFCs (chlorofluorocarbons), they are potent greenhouse gases and are now the target of international efforts to reduce their use due to their contribution to climate change.
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By: Parvesh Mehta