Lesson 3.3.1.1
3.3.1.1 Nomenclature Quiz: AQA Chemistry, Unit 3
20 questions
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Lesson 3.3.1.1, Nomenclature: 20 multiple choice questions for the AQA Chemistry (7405), Unit 3: Organic chemistry, written with Revision Ninja.
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The 20 questions
-
What is the general formula of the alkane homologous series?
- CnH2n+1OH
- CnH2n+2
- CnH2n
- CnH2n-2
-
What is the molecular formula of hexane?
- C6H6
- C6H14
- C5H12
- C6H12
-
What is the empirical formula of but-2-ene, C4H8?
- C2H4
- C4H8
- CH4
- CH2
-
What is the name of the compound CH3CH2CH(OH)CH3?
- Butan-3-ol
- Butan-2-ol
- 2-methylpropan-1-ol
- Butan-1-ol
-
What is the IUPAC name of (CH3)3CH?
- 2-methylpropane
- 2,2-dimethylethane
- Butane
- Isobutene
-
What is the name of CH2=CHCH2CH3?
- But-2-ene
- Butane
- But-1-ene
- 2-methylpropene
-
What is the skeletal formula representation of cyclohexane?
- A triangle with three carbons
- A straight line of six carbons with hydrogens shown
- A hexagon with no carbon or hydrogen symbols at its corners
- A square with four carbons only
-
What is the molecular formula of propanoic acid, CH3CH2COOH?
- C2H4O2
- C3H8O2
- C3H6O
- C3H6O2
-
Which feature defines a homologous series?
- Compounds that all contain a metal atom
- Compounds that all have the same molecular formula
- Compounds that all have the same boiling point
- Compounds that share the same functional group and differ by a CH2 unit
-
What is the functional group of an alcohol?
- C=C
- -Cl
- -OH
- -COOH
-
What is the name of CH3CH2CH2CH2CH2CH3?
- Heptane
- Hexene
- Pentane
- Hexane
-
Which prefix indicates a chain of seven carbon atoms in IUPAC naming?
- Pent-
- Hex-
- Hept-
- Oct-
-
What is the general formula of the alkene homologous series?
- CnH2n+1
- CnH2n+2
- CnH2n-2
- CnH2n
-
Which compound is a member of the same homologous series as ethanol, CH3CH2OH?
- Ethanoic acid
- Propan-1-ol
- Ethanal
- Ethene
-
How many carbon atoms are in the longest chain of 2-methylbutane?
- 5
- 3
- 6
- 4
-
What is the IUPAC name for the compound with the structure CH3CH(CH3)CH2CH3?
- 3-methylbutane
- 2-methylbutane
- Pentane
- 2-methylpentane
-
Which name is correct for CH3CH2CH2CH2CH2CH2OH?
- Heptan-7-ol
- Hept-1-ol
- Heptan-1-ol
- Hexan-1-ol
-
Which feature of the name prop-1-ene is a clue to the structure?
- The compound has three oxygen atoms
- The compound contains a chlorine atom
- The double bond is between carbons 1 and 2
- The compound is a cyclic structure only
-
Explain why a single empirical formula can correspond to several different molecules.
- Different molecules can have the same ratio of atoms but different numbers of atoms, such as C2H4 and C4H8 for CH2
- Every compound with the same empirical formula is an ion
- Empirical formulas always show the exact molecular mass
- Empirical formulas never show the number of carbons
-
A compound has empirical formula CH2O and molar mass 90 g mol-1. What is its molecular formula? (Ar: C = 12, H = 1, O = 16)
- C3H6O3
- CH2O
- C2H4O2
- C4H8O4
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