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प्रश्न
What are Freons?
What is freon?
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उत्तर १
The chloro fluoro derivatives of methane and ethane are called freons.
Freon is represented as Freon – cba
Where, c = number of carbon atoms, b = number of hydrogen atoms, a = total number of fluorine atoms.
CF2Cl2 = 0
C = 1 – 1 = 0
H = 0 +1 = 1
F = 2
So Freon – 12 is CF2Cl2
उत्तर २
Freon refers to a group of chlorofluorocarbon (CFC) compounds, specifically refrigerants such as dichlorodifluoromethane (CCl2F2), which are widely used in refrigeration, air conditioning, and as aerosol propellants; however, Freon and similar CFCs are known to deplete the ozone layer in the stratosphere due to their chlorine content, which catalyzes the breakdown of ozone molecules. They are chemically stable, non-flammable, and efficient refrigerants but have environmental impacts related to ozone depletion.
संबंधित प्रश्न
The name of C2F4C12 is ______.
Which of the following reagent is helpful to differentiate ethylene dichloride and ethylidene chloride?
Assertion: In mono haloarenes, electrophilic substitution occurs at ortho and para positions.
Reason: Halogen atom is a ring deactivator.
Classify the following compound in the form of alkyl, allylic, vinyl, benzylic halides.
\[\begin{array}{cc}\ce{CH3 - CH - CH3}\\
|\phantom{..}\\\ce{Br}\end{array}\]
Classify the following compound in the form of alkyl, allylic, vinyl, benzylic halides.
CH2 = CH – Cl
Discuss uses of freons.
Discuss the environmental effects of freons.
Explain the mechanism of SN1 reaction by highlighting the stereochemistry behind it.
Explain the preparation of the following compound.
Chloropicrin
A hydrocarbon C3H6(A) reacts with HBr to form compound (B). Compound (B) reacts with aqueous potassium hydroxide to give (C) of molecular formula C3H6O. What are the (A), (B) and (C). Explain the reactions.
