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महाराष्ट्र राज्य शिक्षण मंडळएचएससी विज्ञान (सामान्य) इयत्ता १२ वी

Write use of CFC. - Chemistry

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प्रश्न

Write use of CFC.

टीपा लिहा

उत्तर

  1. They are used as refrigerants in fridges and air conditioning.
  2. They are used as propellants in aerosol and solvents.
  3. They are used as blowing agents in making foams and packing materials.
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Uses and Environmental Effects of Some Polyhalogen Compounds
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2022-2023 (March) Official

संबंधित प्रश्‍न

An alkyl chloride on Wurtz reaction gives 2,2,5,5-tetramethylhexane. The same alkyl chloride on reduction with a zinc-copper couple in alcohol gives hydrocarbon with molecular formula \[\ce{C5H12}\]. What is the structure of alkyl chloride?


Choose the most correct option.

Which of the following is used as a source of dichlorocarbene?


Write the major product of the following reaction.


How are the following conversions carried out?

propene to 1-iodopropane


How are the following conversions carried out?

benzene to biphenyl


Write chemical equations indicating the action of following on bromobenzene.

CH3COCl/anhy. AlCl3


Write the equations for the preparation of ethyl chloride using

  1. Hydrogen halide
  2. ethene
  3. Thionyl chloride

Which of these methods is preferred and why?


Identify 'B' in the following reaction.

\[\ce{C2H6 ->[Br2][AlBr3] A ->[CH3COOAg][\Delta] B}\]


Which among the following is used as refrigerants and for air conditioning?


Which of the following reactions does NOT occur?


Which among the following compounds is used to decaffeinate coffee?


When one mole of [Co(NH3)5Cl]Cl2 is treated with excess of AgNO3 solution, ____________ mole(s) of AgCl(s) is formed.


Which of the following is NOT an example of freons?


Phosgene is the common name for ______.


Freon used as refrigerant is ______.


End product of the following sequence of reactions is:


Write environmental effect of CFC.


State the environmental effects of the following compound:

Freons (CCl2F2, CCl3F, CHClF2)


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