Answers

a)(i) State three differences between covalent compounds and electrovalent compounds. (ii) Two elements represented as K and L…

(a) The letters R,S,T represent an alkene, an alkene and a terminal alkyne respectively. Which of R, S…

(a) State how you would carry out the following procedures in the laboratory: (i) Remove the sediment in…

(a)(i) State three postulates of the kinetic theory of gases. (ii) Draw a sketch to illustrate Boyle’s law.…

(a) What is meant by each of the following terms?: (i) Esterification (ii) Saponification   (b)(i) Give the…

(a)(i) Give the names of two allotropes of sulphur. (ii) State and explain what is observed when hydrogen…

a)(i) State Graham’s law of diffusion. (ii) Calculate the vapour density of a triatomic gas X if its…

(a)(i) List two properties of iron that are characteristic of transition metals (ii) Using equations only, show the…

(a) Describe briefly a suitable procedure for preparing a pure sample of MgSO(_4) starting from MgO.   (b)(i)…

(a)(i) List three properties of elements which increase generally across a period in the Periodic Table, (ii) Give…