nakuru district secondary schools trial examination - KCSE Online

...........................................................................................................................................................................................................................................................................................................(c)Will the reaction below take place?(1mark)M (s) + 2N + (aq) M 2+ (aq) + 2N (s)--------------------------------------------------------------------------------------------------------------18 (a) Name one reagent that reacts with concentrated hydrochloric acid to produce chlorineGas( 1 mark).....................................................................................................................................................................................................................b) A student set out to prepare Iron(III) chloride using the apparatus shown in the diagrambelow.guard rubeExplain why(i) It is necessary to pass chlorine gas through the apparatus before heating begins (1 mark)..........................................................................................................................................................................................................................................................................................................(ii) Calcium oxide would be preferred to calcium chloride in the guard tube (1mark)Visit:10www.kcse-online.info for thousands of free Past papers