Q7 / 170 · Manipal (MET) 2016 · Chemistry

Select the correct options according to Hund's rule and Pauli exclusion principle. Figure
Codes

  • A
    Both I and II
  • B
    Both II and III
  • C
    Both I and III
  • Correct answer
    D
    Both III and IV

Solution

According to Pauli exclusion principle, no two electron in an atom can have the same set of four quantum numbers. Hund's rule states that the pairing of electrons in the orbital of a particular sub-shell $(p, d$ or $f$ ) does not take place until all the orbitals of the subshell are singly filled. Option I and II do not follow Hund's rule and Paulis exclusion principle.

Hence, the correct answer is option: 'D'.

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