Advertisements
Advertisements
प्रश्न
What are Freons?
What is freon?
Advertisements
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.
APPEARS IN
संबंधित प्रश्न
The name of C2F4C12 is ______.
Assertion: In mono haloarenes, electrophilic substitution occurs at ortho and para positions.
Reason: Halogen atom is a ring deactivator.
Consider the reaction,
\[\ce{CH3CH2CH2Br + NaCN → CH3CH2CH2CN + NaBr}\]
This reaction will be the fastest in
Chloroform reacts with nitric acid to produce ______.
Classify the following compound in the form of alkyl, allylic, vinyl, benzylic halides.
CH2 = CH – Cl
Why chlorination of methane is not possible in dark?
Write a chemical reaction useful to prepare the following:
Carbon tetrachloride from carbon disulphide.
Discuss uses of freons.
Explain the preparation of the following compound.
Chloropicrin
Two isomers (A) and (B) have the same molecular formula C2H4Cl2. Compound (A) reacts with aqueous KOH gives compound (C) of molecular formula C2H4O. Compound (B) reacts with aqueous KOH gives compound (D) of molecular formula C2H6O2. Identify (A), (B), (C) and (D).
