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5 Written Questions

1. Define 'Alkane'
2. Condensation Polymer
3. Ethene
4. Role of 'IUPAC'
5. What are some of the fractions that 'petroleum' is seperated into?

5 Matching Questions

1. Indicates bond between carbon atom and sometimes other. ch3-ch3
2. It is an atom of group of atoms which gives an homologous series its chemical properties
3. Polymers with little or no branching
4. Dispersion forces between their molecules as well as how closely the molecule can pack together
5. Fossil fuels - non renewable

1. a What do physical properties of alkenes and alkanes depend on?
2. b Condensed Structural Formula
3. c Functional group
4. d Thermoplastics
5. e What is the main source to produce artificial polymers

5 Multiple Choice Questions

1. How is unsaturated compound converted to saturated?+ Provide an equation
   1. containing only carbon and hydrogen atoms
   2. Addition Reaction --> alkene+hydrogen--[Heat/or ctalyst] --> alkane
   3. Reaction with bromine water
   4. A group of atoms obtained by removing one hydrogen atom from an alkane
2. What is the world's most used plastic?
   1. See page 16
   2. c2h2n+2
   3. Polyethylene
   4. an atom or
3. What are the three common Homologous series?
   1. see page 17 for diagram
   2. Polyethylene
   3. Fossil fuels - non renewable
   4. 1.Alkanes 2. Alkenes 3. Alkynes
4. What is meant by 'Fraction'?
   1. Type of bonding between carbon atoms
   2. Past obtained from the distillation mixture
   3. Containing single bond
   4. Reaction with bromine water
5. How are 'polymers made'
   1. It is a liquid containing mixture of solid, liquid and gases. Once extracted, the mixtures are seperated into fractions via fractional distillation.
   2. synthetic polymers are made via addition reaction. In this a fixed amnt of intiator is added to the reacting monomer & breaks the double bond + prvdes a site for further cracking.The monomer quickly combines with each other 2 prdce desried polymer.[ A catalyst could also be added 2 speed things up + help control the properties of the polymer] . The reaction is then terminated using a inhibitor.
   3. Changes large chain fractions into smaller fraction when heated in the presence of a catalyst [ slicia-aluminia]
   4. -Organic[Zeolite] - Have very porous silicate minerals that provide a surface on thich the large molecule can split.-It is recycled in the catalytic process.

5 True/False Question

1. -Heat + Catalyst causes double bond in the unsaturated ethene molecule to brk to form long chain. → Polymerisation of Ethene
   

   True        False

2. 1. Molecular 2. Structural 3. Condensed Structural Formula 4. Constituitional formula → Ethene
   

   True        False

3. Smaller molecular gas[that make up a fraction] used in manu. of polymers → What is meant by 'feedstock'?
   

   True        False

4. shows the number of each atom present in the compound.c2h4 → Molecular Formula
   

   True        False

5. Compounds that contain double bond → Unsaturated Compounds
   

   True        False