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http://www.freeexampapers.us/IGCSE/Chemistry/CIE/1993-2003/chemistry1993-2000answers.pdfscroll down tll the end ^ and ull see al mark schemes for 1993-2000goodluckthis is for chemisrty p1 from 1993-2000 ..after 2000 just use free exam papers...or xtremepppers