gs1medium
Chlorofluorocarbons, known as ozone depleting substances are used
- 1.In the production of plastic foams
- 2.In the production of tubeless tyres
- 3.In cleaning certain electronic components
- 4.As pressurizing agents in aerosol cans
Which of the statements given above is/are correct?
- A.1, 2 and 3 only
- B.4 only
- C.1, 3 and 4 only
- D.1, 2, 3 and 4
▶ Answer & Explanation
Correct answer: C. 1, 3 and 4 only
Chlorofluorocarbons (CFCs) are potent ozone-depleting substances. They have historically been used extensively as refrigerants, propellants in aerosol spray cans, blowing agents for plastic foams, and solvents for cleaning electronics. Their use in the production of tubeless tires is not a primary or common application.
Source: UPSC gs1 2012