IGCSE chemistry past paper websites for 0620 / 4CH1 should organise papers by series with mark schemes. Hub: best IGCSE websites.

Site	Use
Tutopiya portal	Code-matched bank
PapaCambridge / GCE Guide	Archives — hub
Official CAIE / Pearson	Authoritative

Chemistry past papers · Main chemistry sites

Frequently asked questions

Are past paper sites free?

Many are — verify mark schemes are included for 0620 / 4CH1.

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