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प्रश्न
Which of the following is NOT an example of freons?
विकल्प
Diphenyl
Chloro difluoromethane
Trichloro fluoromethane
Dichloro difluoromethane
MCQ
उत्तर
Diphenyl
Explanation:
Freons are chlorofluoro compounds of methane and ethane.
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Uses and Environmental Effects of Some Polyhalogen Compounds
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