NEET-XII-Chemistry

exam-2 year:2016

with Solutions -
  • #146
    In pyrrole

    The electron density is maximum on :-
    (1) 2 and 4
    (2) 2 and 5
    (3) 2 and 3
    (4) 3 and 4
    digAnsr:   2
    Ans : (2)
    N
    H
    N
    H
    N
    H
    N
    H
    N
    H
    (I) (II) (III) (IV) (V)
    34
    5 2
    1
    .. + + + +
    Maximum electron density at (2) and (5)
    as resonating structures III & IV are more stable than
    (II) & (V) so are major contributor.