BHU PMT BHU PMT (Screening) Solved Paper-2006

  • question_answer
    Number of primary alcohols of the formula. \[{{C}_{5}}{{H}_{12}}O\]are:

    A)  1                                            

    B)  4

    C)   5                                           

    D)  3

    Correct Answer: B

    Solution :

                     Four primary alcohols of the formula \[{{C}_{2}}{{H}_{12}}O\] are possible. \[C{{H}_{3}}C{{H}_{2}}C{{H}_{2}}C{{H}_{2}}C{{H}_{2}}OH,\] \[CH{{ & }_{3}}C{{H}_{2}}\underset{\begin{smallmatrix}  | \\  C{{H}_{3}} \end{smallmatrix}}{\mathop{CH}}\,C{{H}_{2}}OH\] \[C{{H}_{3}}\underset{\begin{smallmatrix}  | \\  C{{H}_{3}} \end{smallmatrix}}{\mathop{CH}}\,C{{H}_{2}}-C{{H}_{2}}OH,\] \[C{{H}_{3}}-\underset{\begin{smallmatrix}  | \\  C{{H}_{3}} \end{smallmatrix}}{\overset{\begin{smallmatrix}  C{{H}_{3}} \\  | \end{smallmatrix}}{\mathop{C}}}\,-C{{H}_{2}}OH\]


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