Which is the most commonly used refrigerant Freon-12?

Which is the most commonly used refrigerant Freon-12?
  1. Monochloromonofluoromethane
  2. Dichlorodifluoromethane
  3. Chlorodifluoromethane
  4. Dichlorofluoromethane

Solution

The correct answer is (2) Dichlorodifluoromethane. Freon-12, also known as dichlorodifluoromethane $\left(\mathrm{CCl}_2 \mathrm{~F}_2\right)$, is a commonly used refrigerant. It was widely used in refrigeration and air conditioning systems for many years until its use was phased out due to concerns about ozone layer depletion.
Here's a quick explanation of the other options: - (A) Monochloromonofluoromethane: This is Freon-22 (chlorodifluoromethane), another refrigerant but different from Freon-12. - (C) Chlorodifluoromethane: This is Freon-22, not Freon-12. - (D) Dichlorofluoromethane: This is not a standard refrigerant name and doesn't correspond to Freon-12.

Asked in: MHT CET 2024 (09 May Shift 2)

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