Acid strength: H₂SO₄ vs H₂SeO₄ (same oxidation state) (For analogous oxoacids in Group 16, acid strength decreases down the group: H₂SO₄ is)
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For analogous oxoacids in Group 16, acid strength decreases down the group: H₂SO₄ is stronger than H₂SeO₄.
What each symbol means
| Symbol | What it stands for |
|---|---|
| S, Se | Central atom in oxoacid |
When to use this
More electronegative central atom stabilizes conjugate base by withdrawing electron density.