Redox Reactions Quiz

Froggy Jumps

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Test your redox knowledge.

science rania

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Redox Reactions Quiz


Froggy Jumps Redox Reactions QuizVersion en ligne Test your redox knowledge. par science rania 1 What is reduced in a redox reaction? a Gains electrons b Changes color only c Loses electrons 2 Which species is the reducing agent? a The one that is reduced b The one that is oxidized c The species with unchanged oxidation state 3 Oxidation number of Mn in MnO4- is? a +2 b 0 c +7 4 What is the role of an oxidizing agent? a Stays unchanged b Accepts electrons c Donates electrons 5 In a redox reaction, what must balance besides atoms? a Color change b Electrons transfer c Mass only 6 Which method is used to balance redox in acidic solution? a Ion-electron method b Half-reaction method c Lewis structure method 7 Which species is reduced in Cl2 + 2e- → 2Cl-? a Chlorine is reduced b No change in oxidation state c Chlorine is oxidized 8 In basic solution, what balances H+ produced? a Add H+ b Add OH- to form H2O c Add more electrons 9 What is the oxidation state change for Fe2+ to Fe3+? a +1 b -1 c +2 10 Which agent is oxidized in Fe and CuSO4 reaction? a Fe is oxidized b Neither is oxidized c CuSO4 is oxidized