Linked from
The 9 pages that link to Sulfite, each with the reason it gives.
SulfideCompared with: Sulfite has oxygen and a higher sulfur oxidation state than sulfide.
Sulfurous acidBroader topic: It forms as bisulfite loses a second proton at higher pH.
Sodium dithioniteRelated: Dithionite can form sulfite as it reacts with oxygen or other oxidants.
Sodium sulfiteBroader topic: This anion is the reactive part of sodium sulfite.