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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":414,"_415":416,"_263":370,"_417":418,"_110":398},"qS2NV6vQrpukQjVwWtboU3K4SxuGtU","q","The rate of the hydrogen in the reaction Zn_(s) + 2HCI _(aq) → ZnCI _2(g) + H _2(aq) + H _2(g) can be increased by","ans",[95],"1989","course","chemistry","opts",[419,420,421,422,423],"using Zinc powder instead of Zinc granules","using dilute instead of concentrated hydrochloric acid","cooling the container in which the mixture is placed","using an alloy of zinc instead of pure zinc","using hydrogen chloride gas instead of hydrochloric acid solution","18","initComment","initReply","actionData","errors"]

WAEC - Chemistry (1989 - No. 18)

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