What is the name and molecular formula of the first ALKANE? |
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Methane.
CH4 |
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What is the name and molecular formula of the ALKENE containing just 2 carbons? |
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Ethene
C2H4 |
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What is a hydrocarbon? |
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A compound made up of the elements Hydrogen and Carbon ONLY! |
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Identify the family (homologous series) that this compound belongs to and name it:
C4H10 |
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Alkane
Butane |
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What is an "saturated" molecule? |
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One containing only single bonds between carbon atoms. |
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What chemical would you use to distinguish between ethane and ethene? |
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Bromine |
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In Question 6, what colour change would be observed in the case of using ethene? |
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From orange/brown to colourless |
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Name the product of the reaction between ethene and bromine |
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1,2-dibromoethane |
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What kind of reaction converts ethene into polythene (polyethene)? |
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Polymerization |
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Define the term "addition polymer". |
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A large (giant) molecule formed from many small unsaturated molecules joining together |
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Apart from the length of the molecule, what striking difference is noted between the addition polymer and monomer molecules? |
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The polymer does not have C=C bonds |
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If one of the 4 H atoms of ethene is replaced by a Cl atom we get a different polymer. Name it please |
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Polyvinylchloride (PVC)
In modern terms it is also called Polychloroethene |
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If one of the 4 H atoms of ethene is replaced by a CH3 group we get a different polymer. Name it please |
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Polypropylene |
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If one of the 4 H atoms of ethene is replaced by a C6H5 group we get a different polymer. Name it please |
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Polystyrene |
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What is happening in this reaction:
H2C=CH2 + H2O = CH3CH2OH |
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Ethene is being converted to industrial alcohol (ethanol) |
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As you move from one member of a family or organic compounds to the next highest, how does the boiling point change. |
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There is a steady increase.
This is called a gradation in physical properties. |
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Define the term "homologous Series" |
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A family of organic compounds that share the same general formula, have similar chemical properties and a gradation of physical properties |
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What is the main component of Natural Gas (North Sea gas) |
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Methane |
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What are the main componenets of LPG
Liquid Petrolem Gas |
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Propane and butane |
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What is the liquid used in most cigarette kighters |
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Hexane |
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