Oxidation and ReductionQuestion 1The figure shows the set-up of apparatus to investigate the reactions that take place in test tubes X and Y

a) State the observation for the reactionI. In test tube XII. In test tube Yb) Write the ionic equation for the reaction in (a) (i)c) What is meant by oxidizing agent in terms of electron transferd) Referring to the reaction that take place in test tube XI. What is the change in the oxidation number of magnesium?II. Name the oxidizing agente) Referring to the reaction that takes place in test tube YI. State the type of reaction that occursII. State the oxidation number of bromine in bromine waterIII. What is the function of bromine water?IV. Explain your answer in (e) (III)V. Name other two reagents that can replace bromine water.

Question 2The figure shows the process of iron rusting

a) I) What is rustingII) State the condition for rusting of iron to take placeb) Based on the above figure,a. Write the equation for the process that occurs in anode and cathode?b. Describe the process of rusting as a redox reactionc) Zinc is used to protect iron from corrosion. Zinc-coated iron is known as galvanized iron. If the layer of zinc is scratched, the beneath iron does not rust because zinc acts as the sacrificial metal.a. Used an equation to describe what happens to zinc.b. If zinc is replaced with tin, what happens to iron when the tin coating is brokenc. State two other methods used for prevention of rusting

Question 3a) Explain what is meant by the reactivity series of metalsb) An experiment is carried out to study the position of carbon in the reactivity series of metals. The table shows the results of an experiment when the mixture is heated.MixtureObservations

C + ZnOThe reaction mixture glows brightly. A grey solid is formed.

C + CuOThe reaction mixture burns with a bright flame

C + Al2O3A brown solid is formed. No visible changes occurs

i. Deduce the position of carbon in the reactivity series of metal based on the observation shown in the tableii. Arrange in the reactivity series of metal the position of carbonc) The position of metal in the reactivity series can be used to predict the possible reactions involving metals. Describe how the position of metal in the reactivity series can be used to predict the reaction of metals with oxygen and water.