MDCAT Chemistry MCQ #626

If a mixture of methyl bromide and ethyl bromide is treated with metallic sodium in ether, what is the primary disadvantage observed?

MDCAT Chemistry MCQ #626

  1. Question 1

    Q1. If a mixture of methyl bromide and ethyl bromide is treated with metallic sodium in ether, what is the primary disadvantage observed?

    • A) A pure sample of propane with high percentage yield.
    • B) A mixture of methane and butane only.
    • C) A pure sample of n-butane and ethane mixture.
    • D) A mixture containing ethane, propane, and n-butane.

    Answer: A mixture containing ethane, propane, and n-butane.

    Explanation: Wurtz reaction is ideal for symmetrical alkanes; unsymmetrical mixtures produce three different alkanes that are difficult to separate by boiling point.