NEET-XII-Chemistry

Previous Year Paper year:2017

with Solutions - page 4
  • #49
    4d, 5p, 5f and 6p orbitals are arranged in the
    order of decreasing energy. The correct
    option is
    (1) 5f > 6p > 5p > 4d
    (2) 6p > 5f > 5p > 4d
    (3) 6p > 5f > 4d > 5p
    (4) 5f > 6p > 4d > 5p
    digAnsr:   1
    Ans : ( 1 )
    Sol. (n + l) values for, 4d = 4 + 2 = 6
    5p = 5 + 1 = 6
    5f = 5 + 3 = 8
    6p = 6 + 1 = 7
    ∴ Correct order of energy would be
    5f > 6p > 5p > 4d