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Railways Sample Paper RRB (Group D) Sample Test Paper-3

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

    A)  Chloririate'd hydrocarbon

    B)  Fuorinated hydrocarbon

    C)  Chlorofluoro hydrocarbon

    D)  Fluorinated aromatic compound

    Correct Answer: C

    Solution :

    [c] Chlorofluoro carbon (\[C{{F}_{2}}\]\[C{{I}_{2}}\]) 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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