MCQ
The electronic configuration of any atom explained by:
- A$n +l$ rule
- BHund's law
- CPauli's exclusion principle
- ✓all of the above
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$K_1 = 4.2 \times 10^{-7}$ and $K_2 = 4.8 \times 10^{-11}$
Select the correct statement for a saturated $0.034\, M$ solution of the carbonic acid.
