1.Explain the following:
• (a) Saponification
• (b) micelle
• (c) Oils
• (d) Fats
• (e) Saturated Fatty acid
• (f) Unsaturated Fatty acid
2.Draw a structural formula for each of the following:
• (i) methyl methanoate
• (ii) 2- methyl butanoic acid
• (iii) diethylamine
• (iv) hexane -16- diamine
• (v) benzene-1,4-dicarboxylic acid
3. (a)Describe with the aid of equation and diagram how trioxonitrate(v) is prepared in the laboratory
4. (a)Define Allotropy
• (b) Name two allotropes of carbon. How it can be shown that they are different forms of the same elements?
• (c) Mention two processes by which carbon(iv)oxide is released into the atmosphere.
• (d) State two properties of carbon(iv) oxide which can make it suitable for use as extinguishers.
5.(a)Mention two types of coal
• (b) when coal is heated strongly in retorts in the absence of air, four main product are obtained.
• (I) what is the process describe above?
• (II) Name the four products formed.
• (III) State two uses for any two of the products.
6.(a)Explain why sulphur (iv)oxide is purified before it is passed into the catalyst chamber of the contact process.
• (b) Give one reaction in each case to show how tetraoxosulphate(vi) acid behaves as
• (I) an oxidizing agent
• (Ii) an acid
• (III) a dehydrating agent.
