2.1 Study the structural formula below - NSC Physical Sciences - Question 2 - 2017 - Paper 2
Question 2
2.1 Study the structural formula below.
For this compound, write down the:
2.1.1 Homologous series to which it belongs
2.1.2 IUPAC name
2.1.3 IUPAC name of the org... show full transcript
Worked Solution & Example Answer:2.1 Study the structural formula below - NSC Physical Sciences - Question 2 - 2017 - Paper 2
Step 1
Homologous series to which it belongs
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Answer
The compound belongs to the homologous series of alkynes, characterized by the presence of a carbon-carbon triple bond.
Step 2
IUPAC name
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Answer
The IUPAC name for this compound is 2-heptyne.
Step 3
IUPAC name of the organic acid used in its preparation
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Answer
The organic acid used in its preparation is 2-heptanoic acid.
Step 4
STRUCTURAL FORMULA of its straight chain (unbranched) functional isomer
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Answer
The structural formula for the unbranched functional isomer (2-butene) is as follows:
H H
| |
H--C==C--H
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H H
(Note: Ensure to visualize and sketch the correct arrangement according to this representation.)
Step 5
Structural formula of 4-methylpentan-2-one
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Answer
The structural formula of 4-methylpentan-2-one is as follows:
H H H
| | |
H--C--C--C--C=O
| | |
H CH3 H
(This depicts the correct placement of carbon and functional groups.)
Step 6
General formula of the homologous series to which it belongs
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Answer
The general formula of the homologous series is CnH2n.
Step 7
IUPAC name
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Answer
The IUPAC name for the compound is 5-ethyl-2,6-dimethylhept-3-yne.
