Railways Sample Paper RRB (Assistant Loco Pilot) Sample Test Paper-3

  • question_answer
    'Freon' used as refrigerants is chemically known as

    A)  chlorinated hydrocarbon

    B)  fluorinated hydrocarbon

    C)  chlorofluoro hydrocarbon

    D)  fluorinated aromatic compound

    Correct Answer: C

    Solution :

    Chlorofluoro carbon \[(C{{F}_{2}}C{{l}_{2}})\] is also known as freon. It is used as refrigerants in refrigerators and air conditions. It is also used as propellant in aerosols and foams.


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