(a) (i)  State the collision theory of reaction rates.

(ii)  Using the collision theory, explain briefly how temperature can affect the rate of a chemical reaction.   

(b) (i) Sketch a graphical representation of Charles’ law.
(ii) Calculate the volume of oxygen that would be required for the complete combustion of 2.5 moles of ethanol at s.t.p.
[molar volume at s.t.p = 22.4 dm\(^3\)]                                        

(c) (i)  Define esterification.  
(ii)  Give two uses of alkanoates.
(iii)  Give the products of the alkaline hydrolysis of ethyl ethanoate.

(d) A tin coated plate and a galvanized plate were exposed for the same length of time.
(i)  Which of the two plates corrodes faster?
(ii)  Explain briefly your answer in 2 (d) (i).