Figure 14 shows the structure of a molecule of hydrocarbon Z, C4H8 - Edexcel - GCSE Chemistry - Question 10 - 2022 - Paper 1
Question 10
Figure 14 shows the structure of a molecule of hydrocarbon Z, C4H8.
(i) Give the name of hydrocarbon Z shown in Figure 14.
(ii) Complete the balanced equation for ... show full transcript
Worked Solution & Example Answer:Figure 14 shows the structure of a molecule of hydrocarbon Z, C4H8 - Edexcel - GCSE Chemistry - Question 10 - 2022 - Paper 1
Step 1
Give the name of hydrocarbon Z shown in Figure 14.
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Answer
The compound depicted is butene, specifically 1-butene, as it contains four carbon atoms and has a double bond between the first two carbon atoms.
Step 2
Complete the balanced equation for the reaction of hydrocarbon Z, C4H8 with bromine.
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Answer
The balanced equation for the reaction is:
C4H8+Br2→C4H8Br2
In this reaction, butene reacts with bromine to form 1,2-dibromobutane.
Step 3
Draw the repeating unit of the addition polymer formed when hydrocarbon Z undergoes polymerisation.
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Answer
The repeating unit of the addition polymer formed from 1-butene is:
H H
| |
H - C - C -
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H H
This structure represents the polymer polybutene, which is formed by the addition polymerisation of 1-butene.
