2.1 Define the term homologous series - NSC Technical Sciences - Question 2 - 2022 - Paper 2
Question 2
2.1 Define the term homologous series.
2.2 Write down the letter (A–F) that represents the following:
2.2.1 Haloakane
2.2.2 Functional isomers
2.2.3 Ketone
2.2.... show full transcript
Worked Solution & Example Answer:2.1 Define the term homologous series - NSC Technical Sciences - Question 2 - 2022 - Paper 2
Step 1
Define the term homologous series.
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Answer
A homologous series is a group of organic compounds that share a common functional group and have a similar general formula. The members of this series differ from each other by a constant unit, usually a -CH₂- (methylene) group.
Step 2
Write down the letter (A–F) that represents the following:
Haloakane
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Answer
A
Step 3
Write down the letter (A–F) that represents the following:
Functional isomers
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Answer
C
Step 4
Write down the letter (A–F) that represents the following:
Ketone
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Answer
B
Step 5
Write down the letter (A–F) that represents the following:
Unsaturated hydrocarbon
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Answer
F
Step 6
Write down the IUPAC name of compound E.
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Answer
Butane
Step 7
Draw the structural formula of the following:
Compound C
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Answer
The structural formula of Compound C (Methyl Ethanoate) is:
O
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H₃C—C—O—H
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H
Step 8
Draw the structural formula of the following:
Functional group of compound F
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Answer
The functional group of Compound F (Prop-1-ene) is an alkene, represented by a double bond between two carbon atoms in the structural formula:
