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Ethylene can be readily transformed into many useful products - HSC - SSCE Chemistry - Question 21 - 2018 - Paper 1
Question 21
Ethylene can be readily transformed into many useful products. (a) What is the name of the industrial process by which ethylene is obtained from long chain alkanes?... show full transcript
Worked Solution & Example Answer:Ethylene can be readily transformed into many useful products - HSC - SSCE Chemistry - Question 21 - 2018 - Paper 1
Step 1
What is the name of the industrial process by which ethylene is obtained from long chain alkanes?
Answer
The industrial process by which ethylene is obtained from long chain alkanes is called cracking. This process involves breaking down large hydrocarbon molecules into smaller ones, allowing the production of various products including ethylene.
Step 2
Draw structural formulae for vinyl chloride and its polymer, polyvinyl chloride.
Answer
The structural formula for vinyl chloride (C₂H₃Cl) is as follows:
H Cl
\ /
C
|
C
/ \
H H
The structural formula for its polymer, polyvinyl chloride (PVC), can be represented as:
H Cl H Cl
\ / \ /
C C
| |
C-------C
/ \ / \
H H H H
In this representation, the polymer is a repeating unit derived from the vinyl chloride monomer.