MCQ
The ground state term symbol for an electronic state is governed by
- AHeisenberg’s principle
- BHund’s rule
- ✓Aufbau principle
- DPauli exclusion principle
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$BF _{3}+ NaH \stackrel{450 K }{\longrightarrow} A + NaF$
$A + NMe _{3} \rightarrow B$