The list below gives the formulae of some organic compounds. Use it to answer the questions that follow
V1 CH3CH2CH2CH2OH
V2 CH3CH2CH3
V3 CH3CH2CH2COOH
V4 CH3CH2CH=CH2
V5 CH3CH2CH2CH3
(i)Select two compounds which;
(I) Are not hydrocarbons (1mk)
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(II) Belong to the same homologous series (1mk)
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(ii)Identify the compound that is likely to undergo polymerization. Give a reason for your answer. (2mks)
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(b) The structures below represent two cleansing agents
R- COONa+
R- OSO3Na+
In the table below, give one advantage and one disadvantage of using each one of them
| Advantage | Disadvantage | |
| R- COO –Na | ||
| R –OSO3Na |
(2mks)
(c) Under certain conditions, Ethanoic acid (C2H4O2) and ethanoic (C2H5OH) react to form a sweet smelling compound
(i) What is the general name of the compounds to which the sweet smelling compound belongs? (1mk)
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(ii) Write the formula of the sweet smelling compound. (1mk)
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(iii) Give one use of ethanoic acid other than the formation of the sweet smelling compounds (1mk)
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………………………………………………………………………………………………………………(iv) Write the equation for the reaction between ethanoic acid and solid potassium carbonate (1mk)
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(d) Fibres are either synthetic or natural. Give one;
(i) Example of a natural fibre (1mk) …………………………………………………………………………………………………………
(ii) Advantage of synthetic fibres over natural fibres (1mk)
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Answers
