This question is about alcohols - Edexcel - GCSE Chemistry - Question 7 - 2021 - Paper 1
Question 7
This question is about alcohols.
(i) Figure 14 shows an incomplete diagram of the structure of a molecule of propanol, CH₃CH₂CH₂OH.
Complete the structure of the mo... show full transcript
Worked Solution & Example Answer:This question is about alcohols - Edexcel - GCSE Chemistry - Question 7 - 2021 - Paper 1
Step 1
Complete the structure of the molecule of propanol in Figure 14.
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Answer
The complete structure of propanol (C₃H₈O) includes a linear chain of three carbon atoms (C) with the hydroxyl (OH) group on the terminal carbon atom. The structure can be represented as follows:
H H H
| | |
H--C--C--C--OH
| | |
H H H
Ensure that each carbon atom has enough hydrogen atoms to form four total bonds.
Step 2
What happens to propanol in this reaction?
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Answer
C. it is oxidised
Propanol, when converted into propanoic acid, undergoes oxidation, resulting in the formation of a carboxylic acid group (-COOH) from the alcohol group (-OH).