Chlorofluorocarbons (CFCs) are also known as ________.
Freon
The correct answer is Freon.
Key Points:
Freon
- Freon is a simple fluorinated aliphatic organic compound used in commerce and industry.
- In addition to fluorine and carbon, freons often contain hydrogen, chlorine, or bromine.
- Thus, Freon types include chlorofluorocarbons (CFCs), hydrochlorofluorocarbons (HCFCs), and related compounds.
- The name Freon is a trademark registered by E.I. du Pont de Nemours and Company.
- Freon is a colorless, odorless, non-flammable, non-corrosive gas or low-toxicity liquid introduced as a refrigerant in the 1930s.
- They have also proven useful as propellants for aerosols and various technical applications.
- Their low boiling points, low surface tension, and low viscosity make them particularly useful refrigerants.
- They are extremely stable, inert compounds.
Important Questions from Environmental pollution
Photochemical smog is a resultant of the reaction among
Which of the following is NOT responsible for the degradation of our environment?
Why is there a concern about copper smelting plants?
1. They may release lethal quantities of carbon monoxide into environment.
2. The copper slag can cause the leaching of some heavy metals into the environment.
3. They may release sulphur dioxide as a pollutant.
Select the correct answer using the code given below.
Magnetite particles, suspected to cause neurodegenerative problems are generated as environmental pollutants from which of the following?
1. Brakes of motor vehicles
2. Engines of motor vehicles
3. Microwave ‘Stoves within homes
4. Power plants
5. Telephone lines
Select the correct answer using the code given below.
Considering the primary atmospheric roles and radiative forcing characteristics, which of the following gases is not typically categorized as a long-lived, well-mixed greenhouse gas contributing directly to the Earth's warming, but rather is known for its role in atmospheric aerosol formation and acid deposition?
