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2.1and
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1.1molecular formula is described as a formula of an organic compound that contains carbon and hydrogen atoms only. formula of a compound that shows the number and the type of atoms within the compound. condensed representation used to indicate the number of carbon atoms
1.2The following represents an industrial process involving the manufacturing of margarine from unsaturated plant oils (g\ Which ONE of the combinations below CORRECTLY characterises the process in terms of reaction type and a suitable alternative name?
1.3Which ONE of the following statements about semiconductors is TRUE Electrical conductivity ability increases as temperature decreases. decreases as temperature increases. is between that of a conductor
1.4Which ONE of the following reactions does NOT occur spontaneously? Cu(s\ + Fe (aq\ (aq\ Fe(s\ Fe(s\ 2Ag (aq\
1.5Consider the redox reaction: Zn(s\ + Cu (aq\ (aq\ + Cu(s\ The CORRECT representation of the reduction half
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2.1Write down the IUPAC name for compound (2\
2.2Define the term structural isomer. (2\
2.3Identify the TWO compounds which are isomers Write down ONLY the
2.4Consider the IUPAC names of the following compounds: From the list above write down the NAME of the compound representing EACH of the following:
2.4.1An aldehyde (1\
2.4.2Combustion of 2 moles of this compound in the presence of 7 moles of forms 4 moles of moles (1\
2.4.3Has a carboxyl group (1\ Ethanoic acid Ethanol Ethane Ethan Eth ene
2.5Ethene is used as a monomer in the preparation of polythene.
2.5.1Define the term monomer (2\
2.5.2Name the process during which polythene is manufactured. (1\
2.5.3Name ONE industrial use of polythene. (1\
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3.1Consider the organic compounds represented in the table above
3.1.1Write down the name of the homologous series to which they belong (1\
3.1Draw the structural formula of their functional group
3.2Identify the intermolecular forces present in these organic compounds. (1\ Which ONE of these compounds will have the highest viscosity? (1\ Which ONE of these compounds has the highest vap r pressure?
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4.1What is meant by the term tertiary alcohol (2\
4.2Write down the:
4.2.1MOLECULAR FORMULA of the organic reactant used in reaction (1\
4.2.2STRUCTURAL FORMULA of compound formed in reaction
4.2.3IUPAC name of compound formed in reaction (2\ Compound can also be formed from ompound during reaction
4.3Name the TYPE of reaction represented by reaction (1\
4.4State TWO conditions needed for reaction (2\ 1] 2-methylbut Compound Compound Reaction Reaction
5.1Define the term intrinsic semiconductor.
5.2Give ONE example of intrinsic semiconductor
5.3What type of p n junction diode is represented in the circuit diagram above? Write down only FORWARD BIASED REVERSE BIASED or NON BIASED. (1\
5.4Explain the answer QUESTION
5.3(2\
5.5Which ONE of the graphs describes the current voltage characteristics of the n junction diode represented by the circuit diagram? Write down only Graph or
5.6Explain the characteristics of the n junction diode that is represented by Graph when the applied voltage is increased efer to the RESISTANCE the CURRENT
6.2lectrolyte (1\ .2.2 The r eddish brown layer formed on electrode (1\ .2.3 The g