RAJASTHAN ­ PET Rajasthan PET Solved Paper-2001

  • question_answer
    1, 3-pentadiene   is   more   stable   than 1, 4-pentadiene because

    A)  it is a conjugated diene

    B)  its dipole moment is more

    C)  Both are functional and position isomers

    D)  None of the above

    Correct Answer: A

    Solution :

     1, 3-pentadiene is more stable than 1,4-pen- tadiene because it is conjugated diene. \[C{{H}_{3}}-CH=CH-CH=C{{H}_{2}}\underset{{}}{\overset{{}}{\longleftrightarrow}}\] \[\underset{resonating\text{ }structure}{\mathop{C{{H}_{3}}-CH-CH=CH-\overset{\text{O-}}{\mathop{C}}\,{{H}_{2}}}}\,\]


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