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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Answer
The hydrocarbon represented by compound E (C4H10) is saturated. Therefore, the answer is E.
Step 2
2.1.2 Unsaturated
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The hydrocarbon represented by compound F (C4H6) is unsaturated due to the presence of double bonds. Hence, the answer 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 of alkenes, which compound F belongs to, is: CnH2n.
Step 4
2.3.1 C
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The structural formula for the functional group of compound C (CH3CH2CHO) is:
O
||
H3C-C
|
H
This shows the aldehyde functional group (-CHO).
Step 5
2.3.2 D
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The structural formula for the functional group of compound D (Propane) is:
O
||
H3C-C-CH3
This indicates the ketone functional group (C=O).
Step 6
2.4.1 Give the IUPAC name of compound B.
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The IUPAC name of compound B is Propanol (or 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
| |
H3C-C-C
| |
H OH
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 can be represented as follows:
-[A]-[A]-[A]-...
where [A] represents the repeating unit derived from monomer A.
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.
