JEE Main & Advanced Chemistry Organic Chemistry: Some Basic Principles & Techniques Question Bank Classification and nomenclature of organic compounds

  • question_answer The IUPAC name of  \[C{{H}_{3}}C{{H}_{2}}C(Br)=CH-Cl\] is [CPMT 2004]

    A) 2-bromo-1-chloro butane

    B) 1-chloro-2-bromo-butene

    C) 3-chloro-2-bromo butene-2

    D) None of these

    Correct Answer: A

    Solution :

    \[\underset{2\text{-bromo      1-chloro  butene}}{\mathop{\underset{4}{\mathop{C{{H}_{3}}}}\,-\underset{3}{\mathop{C{{H}_{2}}}}\,-\underset{2}{\mathop{C(Br)}}\,=\underset{1}{\mathop{CH}}\,-Cl}}\,\]

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