NEET AIPMT SOLVED PAPER 2002

  • question_answer
                    When \[C{{H}_{3}}C{{H}_{2}}CHC{{l}_{2}}\] is treated with \[NaN{{H}_{2}}\] the product formed is:         

    A)                                            \[C{{H}_{3}}-CH=C{{H}_{2}}\]                                    

    B)                 \[C{{H}_{3}}-C\equiv CH\]

    C)                 \[C{{H}_{3}}C{{H}_{2}}CH\backslash /N{{H}_{2}}N{{H}_{2}}\]                                      

    D)                 \[C{{H}_{3}}C{{H}_{2}}CH\backslash /ClN{{H}_{2}}\]

    Correct Answer: B

    Solution :

                    \[C{{H}_{3}}-C{{H}_{2}}-CHC{{l}_{2}}\underset{\Delta }{\mathop{\xrightarrow{NaN{{H}_{2}}}}}\,\]                 \[C{{H}_{3}}-CH=CHCl\underset{\Delta }{\mathop{\xrightarrow{NaN{{H}_{2}}}}}\,\]  \[\underset{Final\,product}{\mathop{C{{H}_{3}}-C\equiv CH}}\,\]


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