Define a hydrocarbon - NSC Technical Sciences - Question 2 - 2024 - Paper 2
Question 2
Define a hydrocarbon.
(2)
Write down the letters that represent TWO unsaturated hydrocarbons.
(2)
Write down the general formula of the following compounds:
B
(1... show full transcript
Worked Solution & Example Answer:Define a hydrocarbon - NSC Technical Sciences - Question 2 - 2024 - Paper 2
Step 1
Define a hydrocarbon.
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Answer
A hydrocarbon is an organic compound that consists exclusively of hydrogen and carbon atoms. These compounds can be saturated (having single bonds) or unsaturated (containing double or triple bonds).
Step 2
Write down the letters that represent TWO unsaturated hydrocarbons.
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Answer
The letters representing two unsaturated hydrocarbons are B and F.
Step 3
Write down the general formula of the following compounds: B.
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Answer
The general formula for compound B, which is a simple alkene, is CnH2n.
Step 4
Write down the general formula of the following compounds: F.
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Answer
The general formula for compound F, which is an alkane, is CnH2n+2.
Step 5
Write down the IUPAC names of the following compounds: C.
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Answer
The IUPAC name for compound C is 1,3-butadiene.
Step 6
Write down the IUPAC names of the following compounds: D.
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Answer
The IUPAC name for compound D is pentan-2-one.
Step 7
Draw the structural formula of the following compounds: E.
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Answer
The structural formula for compound E is shown as:
H H H
| | |
H-C-C-C-C-H
| | |
H H H
This represents a straight-chain alkane (
C<sub>5</sub>H<sub>12</sub>).
Step 8
Draw the structural formula of the following compounds: F.
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Answer
The structural formula for compound F is shown as:
H H
| |
H-C-C-H
| |
H H
This represents a cyclic alkane (C<sub>3</sub>H<sub>6</sub>).
