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These resources are designed to help you familiarize yourself with the exam format, identify key topics, and practice effectively. Whether you're preparing for the May/June or GCE sessions, our curated materials provide both objective and theory questions to enhance your study sessions.","tags","waec nigeria west africa examination council","version","vip","location",{"_390":391,"_392":393},"type","Point","coordinates",[394,395],9.082,10.3671,"ng","priority",18,"createdOn",1755991949910,"updatedOn","questionsCount",27220,"courseCount",23,"examKey","questionData",{"_369":409,"_410":411,"_412":413,"_278":415,"_416":417,"_263":370,"_418":419,"_110":424},"g6eqz8UHBzacXhJOphbNgKSi8MB1Bq","q","What is the change in the oxidation number of 1^- in the reaction represented by the following equation? 51 ^-1_(aq) + 6H⁺_(aq) + 1O^-_3(aq) → 31_2(g) + 3H₂O_(l)","ans",[414],1,"2004","course","chemistry","opts",[420,421,422,423],"-5 to -3","-1 to 0","+ 5 to + 0","-1 to + 2",34,"34","initComment","initReply","actionData","errors"]

WAEC - Chemistry (2004 - No. 34)

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