Answers

(a)(i) Give three characteristics of homologous series. (ii) Name two groups of compounds which form such a series.…

(a)(i) Determine the oxidation number of sulphur in Na(_2)S(_2)O(_3) (ii) Name the allotropes of sulphur. (iii) State two…

(a) (i) Define the term fermentation (ii) Name the catalyst that can be used for this process (b)…

(a) Define esterification. (b) State two properties of plastic. (c) Name the components of duralumin. (d) What is…

(a) (i) Draw the structures of the isomers of the alkene with molecular formurat C(_4)H(_8) (ii) State the…

(a)(i) Name a suitable drying agent for the preparation of carbon (IV) oxide in the laboratory. (ii) Using…

(a) What are nucleons? (b) State Graham’s law of diffusion. (c) Explain briefly why aluminium does not corrode…

(a) Consider the following atoms: (^R_T)X; (^S_T)X. (i) State the phenomenon exhibited by the two atoms. (ii) What…

(a)(i) Describe briefly the industrial preparation of ammonia. (ii) Write a balanced equation for the reaction in (a)(i).…

(a)(i) Describe briefly how trioxonitrate (V) ions could be tested for in the laboratory. (ii) State two uses…