Consider the following statements:

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?

[UPSC Civil Services Exam – 2012 Prelims]

(a) 1, 2 and 3 only

(b) 4 only

(c) 1, 3 and 4 only

(d) 1, 2, 3 and 4


Answer: (c)        

Explanation:

  • Chlorofluorocarbons (CFCs), which are classified as ozone-depleting substances, find their applications in the production of plastic foams, cleaning electronic components, and serving as pressurizing agents in aerosol cans.
  • CFCs are composed of carbon, chlorine, and fluorine atoms and are harmless and non-flammable.
  • They are commonly utilized as refrigerants, solvents, blowing agents for foams and packaging materials, and in the production of aerosol sprays.

Consider the following statements:                                                                   The Parliament of India can place a particular law in the Ninth Schedule of the Constitution of India. The validity of a law placed in the Ninth Schedule cannot be examined by any court and no judgement can be made on it. Which of the statements given above is/are correct?

Consider the following statements:                                               

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Consider the following statements:                                                         The Parliament of India can place a particular law in the Ninth Schedule of the Constitution of India. The validity of a law placed in the Ninth Schedule cannot be examined by any court and no judgement can be made on it. Which of the statements given above is/are correct?

Consider the following statements:                                               

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