A molecule can have optical isomerism and geometrical isomerism.
Which of the compounds below show both?
CH3CH2CHBrCH=CHBr
CH3CBr=CBrCH3
CH3CH=CHCH2CH3
CH3CHBrCH=CH2
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Syllabus Edition
First teaching 2023
First exams 2025
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13.4 Isomerism: Structural Isomerism & Stereoisomerism
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13.4 Isomerism: Structural Isomerism & Stereoisomerism
A molecule can have optical isomerism and geometrical isomerism.
Which of the compounds below show both?
CH3CH2CHBrCH=CHBr
CH3CBr=CBrCH3
CH3CH=CHCH2CH3
CH3CHBrCH=CH2
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Which carbon atom is the chiral centre in the following molecule?
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2,2-dimethylpropane is an isomer of pentane.
What type of isomerism is shown by 2,2-dimethylpropane?
Stereoisomerism
Functional group
Cyclic
Chain
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What is the correct meaning of the term structural isomer?
A compound that contains a different molecular formula and the atoms are arranged differently in space
A compound that contains the same molecular formula but the atoms are arranged differently in space
A compound with the same empirical formula but different structural formula
A compound with the same molecular formula but different structural formula
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Evening primrose oil has been shown to reduce high blood pressure and improve heart health. The oil is made from seeds, within which the active compound gamma-linolenic acid is found.
How many stereoisomers does gamma-linolenic acid have?
3
6
8
4
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How many structural isomers are there of tribromopropane, C3H5Br3?
4
5
6
7
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How many isomeric esters have the molecular formula C5H10O2?
4
5
9
7
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11-cis retinal, C20H28O, is found in the retina of animal eyes and is required for vision.
An 11-cis retinal molecule contains the following functional groups:
Within the side chain, there is a double bond between carbons 11 and 12.
Which letter is associated with the correct pair?
Arrangement of atoms around the adjacent carbons 11 and 12 |
Total number of carbon-carbon double bonds |
|
A |
5 |
|
B |
6 |
|
C |
5 |
|
D |
6 |
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Which of the following compounds is both chiral and acidic?
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Cholesterol is an important biological molecule produced by the liver. It is used in the production of steroid hormones and vitamin D.
How many chiral centres are there in one molecule of cholesterol?
7
8
10
5
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Including structural and stereoisomers, how many isomeric products are produced when alcoholic NaOH reacts with 2-bromobutane?
1
2
3
4
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How many isomers, including structural and stereoisomers, with the formula C5H10 have structures that involve π bonding?
3
4
5
6
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