22 11 A series of experiments was carried out to determine the kinetics of the reaction between a chloroalkane, RCl, and potassium hydroxide in aqueous solution. A large excess of the chloroalkane was used. The data obtained are shown. [OH−] / mol dm−3 Time / s 0.00100 39 0.00200 31 0.00300 23 0.00400 16 0.00500 8 (a) Plot a graph of the concentration of the hydroxide ions against time. (2) Turn over 23 (b) State the order with respect to hydroxide ions. Justify your answer by reference to your graph in (a). (2) .................................................................................................................................................................................................................................................................................... .................................................................................................................................................................................................................................................................................... .................................................................................................................................................................................................................................................................................... .................................................................................................................................................................................................................................................................................... (c) Deduce the type of mechanism occurring. Justify your answer. (2) .................................................................................................................................................................................................................................................................................... .................................................................................................................................................................................................................................................................................... .................................................................................................................................................................................................................................................................................... .................................................................................................................................................................................................................................................................................... .................................................................................................................................................................................................................................................................................... .................................................................................................................................................................................................................................................................................... (d) Give the classification of the chloroalkane in this reaction. (1) .................................................................................................................................................................................................................................................................................... .................................................................................................................................................................................................................................................................................... (Total for Question 11 = 7 marks)