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level: Redox reactions

Questions and Answers List

level questions: Redox reactions

QuestionAnswer
What is meant by oxidation?The chemical reaction in which a substance gains oxygen or loses electrons/Hydrogen
What is meant by reduction?A chemical reaction in which a substance loses oxygen or gains electrons/hydrogen.
Give three examples of redox reactions.Displacement reaction Combustion Metal + Acids
Give three ways which can be used to identify if a redox reaction has taken placeGain and lost of Oxygen Gain and lost of Electrons Changes in oxidation state
What color change is seen when Potassium Manganate (VII) oxidises another substance?Purple to colorless
What color change is seen when Potassium Iodide reduces another substance?Colorless to red brown