BHU PMT BHU PMT Solved Paper-2002

  • question_answer
    \[{{C}_{2}}{{H}_{5}}CH=C{{H}_{2}}\xrightarrow[{}]{H-X}A\] The product A is identified as:

    A)  \[{{C}_{2}}{{H}_{5}}CHXC{{H}_{3}}\]      

    B)  \[{{C}_{2}}{{H}_{5}}C{{H}_{2}}CHX\]

    C)  \[{{C}_{2}}{{H}_{5}}CHC{{H}_{3}}X\]      

    D)  \[{{C}_{2}}{{H}_{5}}C{{H}_{2}}C{{H}_{2}}X\]

    Correct Answer: A

    Solution :

                     Key Idea: The reaction follows Markownikoff?s rule which states that the negative part of the addendum adds on to the less hydrogenated carbon atom. \[{{C}_{2}}{{H}_{5}}CH=C{{H}_{2}}\xrightarrow[{}]{H-X}\underset{}{\mathop{{{C}_{2}}{{H}_{5}}CHX}}\,-C{{H}_{3}}\]


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