4.1 During Reaction 1, CH2 = CH2 undergoes polymerisation to form compound Y - NSC Physical Sciences - Question 4 - 2016 - Paper 2
Question 4
4.1 During Reaction 1, CH2 = CH2 undergoes polymerisation to form compound Y.
For this reaction, write down the:
4.1.1 Type of polymerisation
4.1.2 NAME of compou... show full transcript
Worked Solution & Example Answer:4.1 During Reaction 1, CH2 = CH2 undergoes polymerisation to form compound Y - NSC Physical Sciences - Question 4 - 2016 - Paper 2
Step 1
4.1.1 Type of polymerisation
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Answer
The type of polymerisation occurring in Reaction 1 is addition polymerisation. This process involves the joining of multiple alkenes (CH2=CH2) to form a long-chain polymer without the loss of any small molecules.
Step 2
4.1.2 NAME of compound Y
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Compound Y is named polyethylene. This is the polymer formed from the polymerisation of ethylene monomers.
Step 3
4.2.1 IUPAC name of compound X
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The IUPAC name of compound X is chloroethane. This represents the compound formed in Reaction 2 by the hydrohalogenation of an alkene.
Step 4
4.2.2 Type of addition reaction of which this is an example
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The type of addition reaction represented in Reaction 2 is hydrohalogenation. This reaction involves the addition of hydrogen chloride (HCl) across the double bond of the alkene.
Step 5
4.3.1 STRUCTURAL FORMULA of compound Z
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The structural formula of compound Z is as follows:
H H
| |
H--C--C--OH
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H Cl
This represents the product formed when compound X reacts with excess hot water.
Step 6
4.3.2 NAME or FORMULA of the INORGANIC product
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The inorganic product formed during this reaction is hydrochloric acid, which can be represented by the formula HCl.
Step 7
4.4.1 Is C2H6 a SATURATED or an UNSATURATED compound? Give a reason for the answer.
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C2H6 (ethane) is a saturated compound. This is because it contains single bonds only between carbon atoms and is bonded to the maximum number of hydrogen atoms without any double or triple bonds.
Step 8
4.4.2 Write down the NAME or FORMULA of the INORGANIC reactant needed for this reaction.
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The inorganic reactant needed for this reaction is oxygen, which can be represented by the formula O2.
Step 9
4.4.3 Write down a balanced equation for the combustion of C2H6.
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The balanced equation for the combustion of C2H6 is:
