MCQ
The molecular orbitals like atomic orbitals are filled in accordance with the :
- AAufbau principle.
- BPauli's exclusion principle.
- CHund's rule.
- ✓All of the above.
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

$PC{l_5}(g) \rightleftharpoons PC{l_3}(g) + C{l_2}(g)$ is