What is the name of the following compound?
1,2-dichloro-1,2-dimethylpropane
2,3-dichloro-2,3-dimethylpropane
2,3-dichloro-2-methylbutane
2,3-dichloro-3-methylbutane
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What is the name of the following compound?
1,2-dichloro-1,2-dimethylpropane
2,3-dichloro-2,3-dimethylpropane
2,3-dichloro-2-methylbutane
2,3-dichloro-3-methylbutane
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The skeletal formulae of four alcohols, E, F, G and H, are shown below.
Which pair of alcohols are structural isomers of each other?
E and F
E and G
E and H
F and G
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What is the correct formula for 1-fluoro-3-methylbut-2-ene?
A | Structural | CH2FCH2C(CH3)CH3 |
B | Displayed | |
C | Empirical | C5H9F |
D | Skeletal |
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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 structural 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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Which of the hydrocarbons shown below does not belong in the same homologous series as the other compounds?
C8H18
C9H18
C14H30
C11H24
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What is the identity of the functional group that is ringed in the molecule shown below?
Aldehyde
Ketone
Carboxylic acid
Alkene
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What is the IUPAC name of the following molecule?
2-chloro-3-methylpentane
3-methyl-4-chloropentane
2-ethyl-3-chlorobutane
2-chloro-3-ethylbutane
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When propan-1-ol is heated under reflux in the presence of concentrated sulfuric acid, propene is formed.
What type of reaction is this?
Neutralisation
Addition
Substitution
Elimination
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Which of the reactions shows homolytic fission?
H3C+ + Cl– → H3C–Cl
H3C–Br → H3C+ + Br–
H3C–CH3 → H3C• + •CH3
Cl• + •CH3 → H3C–Cl
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How many structural isomers have the molecular formula C6H14?
3
4
5
6
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What is the systematic name of the compound below?
1-carbonyl-2-methylpropan-3-ol
3-hydroxy-2-methylpropanal
2-methoxypropan-1-ol
2-methyl-3-hydroxypropanone
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The skeletal formula of an organic compound is shown below.
What is the molecular formula of the organic compound?
C7H12O2
C7H13O2
C7H14O2
C7H15O2
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Propanone is the simplest compound in the homologous series of ketones.
What is the general formula for the homologous series of ketones?
C3H6O
CnH2n-1O
CnH2nO
CnH2n+1O
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How can the molecule below be described?
Aromatic and alicyclic
Aliphatic and saturated
Alicyclic and saturated
Alicyclic and unsaturated
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Which compound(s) is a / are structural isomer(s) of C6H12O?
1, 2 and 3
Only 1 and 2
Only 2 and 3
Only 1
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How many alcohols have the formula C4H9OH?
2
3
4
5
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Which statement(s) is / are correct for the organic compound below?
IUPAC name is pent-3-ene | The empirical formula is CH2 | It is an isomer of cyclopentane | |
A | ✓ | ✓ | ✓ |
B | ✓ | ✓ | X |
C | ✓ | X | ✓ |
D | X | ✓ | ✓ |
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Which statement(s) is / are correct about bond fission?
1, 2 and 3
Only 1 and 2
Only 2 and 3
Only 1
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Which diagram shows the heterolytic fission of the C-Cl bond to form a carbocation and Cl–?
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Which statement(s) is / are correct about the members of a homologous series?
1, 2 and 3
Only 1 and 2
Only 2 and 3
Only 1
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What is the correct IUPAC name for the following molecule?
4-ethyl-1,2,3-trimethylpent-2-ene
3,4,5-trimethylhept-4-ene
5-ethyl-3,4-dimethylhex-3-ene
3,4,5-trimethylhept-3-ene
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Which row is correct?
|
IUPAC name |
General formula |
Skeletal formula |
Structural formula |
A |
2-methylpropanal |
CnH2n+1O |
CH3CH(CH3)CHO |
|
B |
4-methylpentylamine |
CnH2n+1NH2 |
|
CH3CH2CH2CH(CH3)CH2NH2 |
C |
4-methylhexan-2-one |
CnH2nO |
CH3CH2CH(CH3)CH2COCH3 |
|
D |
ethyl propanoate |
CnH2nO2 |
|
CH3COOCH2CH2CH3 |
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How many isomers are there of C5H13N which are primary amines?
7
8
9
10
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Which pair of molecules show structural isomerism?
E-but-2-ene and Z-but-2-ene
Propanone and propan-2-ol
2-methyl-3-ethylbutane and 2,3-dimethylpentane
Butanoic acid and methyl propanoate
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Which equation is correct?
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