EAMCET Medical EAMCET Medical Solved Paper-2005

  • question_answer
    1, 2-dibromoethane reacts with alcoholic KOH to yield a product X. The hybridization state of the carbons present in X respectively are:

    A)  \[sp,sp\]                            

    B)  \[s{{p}^{3}},s{{p}^{3}}\]

    C)  \[s{{p}^{2}},s{{p}^{2}}\]                              

    D)  \[s{{p}^{3}},s{{p}^{2}}\]

    Correct Answer: A

    Solution :

                     Alkyl halides give elimination reaction with alcoholic KOH and yield an alkene or alkyne (From dihalides) e.g., \[\underset{1,-2\text{dibromo}\,\text{ethane}}{\mathop{Br-C{{H}_{2}}-C{{H}_{2}}-Br}}\,\xrightarrow[\Delta ]{alc.KOH}\underset{acetylene}{\mathop{\overset{sp}{\mathop{CH}}\,\equiv C\overset{sp}{\mathop{H}}\,}}\,\] Hence, product has both carbon sp- hybrid.


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