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JEE Main & Advanced Chemistry Haloalkanes and Haloarenes / हैलोएल्केन तथा हैलोएरीन्स Question Bank Properties of Halogen Containing Compounds

  • question_answer
    Two percent of ethanol is added during the oxidation of chloroform to stop the formation of carbonyl chloride. In this reaction ethanol acts as [Pb. CET 2001]

    A) Auto catalyst

    B) Negative catalyst

    C) Positive catalyst

    D) None of these

    Correct Answer: B

    Solution :

      Any substance which when added to a chemical reaction inhibit or decrease the rate of reaction is called negative catalyst. In \[CHC{{l}_{3}}\] when two percent ethanol is added, it stops the formation of carbonyl chloride. So ethanol acts as negative catalyst.


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