MHT CET · Chemistry · Haloalkanes and Haloarenes
Which from following compounds is used to prepare a refrigerant R-22?
- A Monochloromethane
- B Dichloromethane
- C Trichloromethane
- D Tetrachloromethane
Answer & Solution
Correct Answer
(C) Trichloromethane
Step-by-step Solution
Detailed explanation
Refrigerant R-22, also known as chlorodifluoromethane (\(\mathrm{CHClF}_2\)), is commonly produced starting from trichloromethane \(\left(\mathrm{CHCl}_3\right)\), also known as chloroform. In the presence of hydrogen fluoride (HF) and appropriate catalysts, chloroform undergoes partial fluorination to yield R-22.
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