nakuru district secondary schools trial examination - KCSE Online

Substance A.......................................................................................................Process X.............................................................................................................Substance B...............................................................................................................Substance D ...........................................................................................................(b)(i) Identify the type of polymerization that results to the formation of compound E ((½ mark)....................................................................................................................................................(ii) What is the effect of continuous use of the polymer E on the environment(½ mark)............................................................................................................................................................................................................................................................................................................23(a) Name two crystalline allotropes of sulphur(1mark).................................................................................................................................................................................................................................................................................................(b) Name two other elements that exhibit allotropy(1mark)...................................................................................................................................................................................................................................................................................................(c ) Why is surphur (vi) oxide not absorbed directly into water in the contact process (1mark)……………………………………………………………………………………………………………………………………………………………………………………………………24 State the uses of the following apparatus in chemistry (3marks)(a)A Separating funnel……………………………………………………………………………(b) A Pipette .....................................................................................................................................(c ) A Spatula ..................................................................................................................................25 A student tested the pH of five solutions using universal indicator and obtained thefollowing resultsSolution Colour pHVisit:13www.kcse-online.info for thousands of free Past papers