Consider the organic molecules in the table below and answer the questions that follow - NSC Technical Sciences - Question 2 - 2022 - Paper 2
Question 2
Consider the organic molecules in the table below and answer the questions that follow.
Compounds E and F are hydrocarbons. For these compounds, write down the LETT... show full transcript
Worked Solution & Example Answer:Consider the organic molecules in the table below and answer the questions that follow - NSC Technical Sciences - Question 2 - 2022 - Paper 2
Step 1
2.1.1 Saturated
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The letter that represents a saturated hydrocarbon is E.
Step 2
2.1.2 Unsaturated
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The letter that represents an unsaturated hydrocarbon is F.
Step 3
2.2 Write down the general formula for a homologous series to which compound F belongs.
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The general formula for the homologous series to which compound F belongs is ( C_nH_{2n} ).
Step 4
2.3.1 C
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The structural formula for the functional group of compound C (an aldehyde) is:
O
||
H-C-H
|
H
This represents the carbonyl group (C=O) at the end of the molecule.
Step 5
2.3.2 D
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The structural formula for the functional group of compound D (a ketone) is:
O
||
C-C
|
H-H
This is the carbonyl group (C=O) located between two carbon atoms.
Step 6
2.4.1 Give the IUPAC name of compound B.
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The IUPAC name of compound B is 2-propanol.
Step 7
2.4.2 Draw the structural formula of the positional isomer of compound B.
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The structural formula of the positional isomer of compound B is:
H
|
H--C--OH
|
C
|
H
This represents 1-propanol.
Step 8
2.5.1 Define the term polymer.
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A polymer is a large molecule composed of smaller monomer units covalently bonded to each other in a repeating pattern.
Step 9
2.5.2 Give the structural formula of the polymer that can be formed from monomer A.
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The structural formula of the polymer formed from monomer A is shown as:
-[A]-[A]-[A]-...
Where [A] represents the repeating monomer unit.
Step 10
2.5.3 Give the NAME of the polymer that can be formed from monomer A.
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The name of the polymer that can be formed from monomer A is polyethylene.
