According to Hund's rule of maximum multiplicity, all the electrons in singly occupied orbitals have the same spin.
A
True
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B
False
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Solution
The correct option is A True Hund's rule states that every orbital in a subshell is singly occupied with one electron before the pairing of electrons starts. Also, all of the electrons in singly occupied orbitals must have the same spin (to maximize total spin). Thus, the given statement is true.