Linked from
The 51 pages that link to Chlorine, each with the reason it gives.
ChlorideNarrower topic: Chloride forms when a chlorine atom gains one electron.
PerchlorateNarrower topic: Perchlorate contains chlorine at its highest common oxidation state.
Chlorous acidNarrower topic: Chlorous acid is built from chlorine, oxygen, and hydrogen.
Sulfur dichlorideNarrower topic: Chlorine atoms form the polar S–Cl bonds that define the compound.