Question map
Not attempted Correct Incorrect ★ Bookmarked
Loading…
Q99 (CDS-I/2007) Science & Technology › Basic Science (Physics, Chemistry, Biology) › Applied everyday chemistry Answer Verified

'Freon' used as refrigerants is chemically known as

Result
Your answer: —  Â·  Correct: C
Explanation

Freon is a registered trademark for a group of halocarbon products primarily used as refrigerants and aerosol propellants. Chemically, Freons are classified as chlorofluorocarbons (CFCs), which are organic compounds composed of chlorine, fluorine, and carbon atoms [1]. These substances are a subset of halogenated hydrocarbons where hydrogen atoms in a hydrocarbon chain are replaced by halogen atoms like chlorine and fluorine [2]. Specifically, the first commercially produced Freon, R-12 (dichlorodifluoromethane), consists of a single carbon atom bonded to two chlorine and two fluorine atoms. While the term 'Freon' is sometimes used generically for newer hydrofluorocarbons (HFCs), its primary chemical identification in a classical scientific context refers to chlorofluoro hydrocarbons. These compounds were widely adopted due to their non-toxic, non-flammable, and chemically stable properties.

Sources

  1. [1] Environment, Shankar IAS Acedemy .(ed 10th) > Chapter 19: Ozone Depletion > 19.1.2. Chlorofluorocarbons (CFCs): > p. 268
  2. [2] Environment and Ecology, Majid Hussain (Access publishing 3rd ed.) > Chapter 6: Environmental Degradation and Management > ozone depletion > p. 12
How others answered
Each bar shows the % of students who chose that option. Green bar = correct answer, blue outline = your choice.
Community Performance
Out of everyone who attempted this question.
100%
got it right
✓ Thank you! We'll review this.

SIMILAR QUESTIONS

IAS · 2000 · Q114 Relevance score: -1.40

Assertion (A) : Large cold storage plants use ammonia as refrigerant while domestic refrigerators use chlorofluorocarbons. Reason (R) : Ammonia can be liquified at ambient temperatures at low pressures.

IAS · 2025 · Q46 Relevance score: -1.79

What is the common characteristic of the chemical substances generally known as CL-20, HMX and LLM-105, which are sometimes talked about in media?

IAS · 2012 · Q42 Relevance score: -2.15

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?

CDS-I · 2013 · Q67 Relevance score: -3.05

The gas used in a refrigerator is—

IAS · 2006 · Q40 Relevance score: -4.37

Consider the following chemicals: I. Benzene II. Carbon tetrachloride III. Sodium Carbonate IV. Trichloroethylene Which of the above is/are used as dry cleaning chemicals?