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Quizzes > Science > Chemistry

Naming Compounds Quiz: Test Your IUPAC Skills Now

Challenge yourself with our chemistry nomenclature quiz and polish your chemical naming skills!

Difficulty: Moderate
2-5mins
Learning OutcomesCheat Sheet
Paper art illustrating a chemistry quiz on IUPAC naming skills on a coral background

Think you know your way around molecular structures and chemical formulas? Dive into this naming compounds practice quiz to test and boost your IUPAC skills! From organic naming molecular compounds quiz to naming ionic compounds practice , this chemistry nomenclature quiz guides you through naming rules. You'll learn key prefixes, suffixes, and naming conventions while identifying pitfalls that trip up even seasoned students. You'll even get immediate results and explanations each time you take this chemical naming quiz. Ready to turn confusion into confidence? Click "Start" now to master chemical nomenclature one compound at a time!

What is the IUPAC name for CH4?
Methyl hydride
Methane
Carbon tetrahydride
Methene
Methane is the simplest alkane with one carbon and four hydrogens, following the suffix -ane. The prefix 'meth-' indicates one carbon atom. No double bonds are present, so -ene or -yne suffixes are not used. ChemLibreTexts
What is the IUPAC name for C2H6?
Ethene
Methylene
Dimethyl
Ethane
Ethane is the two-carbon alkane using the prefix 'eth-' and suffix '-ane'. There are no double or triple bonds, so other suffixes are not used. It is the second simplest member of the alkane homologous series. ChemLibreTexts
What is the IUPAC name for C3H6?
Propene
Propane
Propyne
Cyclopropane
C3H6 has one double bond and three carbons, indicated by the suffix '-ene' and prefix 'prop-'. No cyclic structure is implied, so cyclo-compounds are not named. With the double bond starting at carbon 1, no locant is needed for propene. ChemLibreTexts
What is the IUPAC name for the compound CH3CH2OH?
Ethanal
Propanol
Ethanol
Methanol
Ethanol is the two-carbon alcohol with the functional group '-OH' at carbon 1, using the suffix '-ol'. The parent hydrocarbon is ethane, so the name becomes ethanol. Alcohols are named with the lowest possible locant, and here no number is needed as there are only two carbons and the hydroxyl is on carbon 1. ChemLibreTexts
What is the IUPAC name for the compound C6H11Br (a bromine substituent on a cyclohexane ring)?
Bromocyclohexane
Cyclohexane bromide
Cyclohexyl bromide
Cyclohexane-1-bromide
In naming halogen-substituted cycloalkanes, the ring is given as the parent, and substituents receive the lowest possible locant. In monobrominated cyclohexane, no locant number is needed because all positions are equivalent. Bromocyclohexane follows the IUPAC convention using the suffix '-cyclohexane' with the substituent prefix. ChemLibreTexts
What is the IUPAC name for CH3-CHCl-CH3?
Isopropyl chloride
Propyl chloride
2-chloropropane
1-chloropropane
The parent alkane has three carbons, giving 'propane' as the root. Numbering from the end that gives the lowest set of locants places the chloro group on carbon 2, hence '2-chloropropane'. Common names like isopropyl chloride are not IUPAC systematic names. ChemLibreTexts
What is the IUPAC name for the compound CH3-CH(CH3)-CH3?
2-methylbutane
Butane
Isobutane
2-methylpropane
The longest carbon chain has three carbons, making the parent 'propane'. The extra methyl group is located on carbon 2, giving the name '2-methylpropane'. Although 'isobutane' is a common name, the systematic IUPAC preferred name is 2-methylpropane. ChemLibreTexts
What is the IUPAC name for CH?C-CH2-CH3?
2-butyne
Pent-1-yne
1-butyne
Butyne
The parent chain has four carbons and a triple bond, so the suffix '-yne' is required. Numbering from the end nearest the triple bond places it between carbons 1 and 2, giving '1-butyne'. 'Butyne' without a locant is ambiguous and does not follow IUPAC rules. ChemLibreTexts
What is the IUPAC name for CH3-CH=C(CH3)-CH2-CH3?
3-methylpent-2-ene
2-methylpent-4-ene
5-methylpent-2-ene
4-methylpent-2-ene
The longest chain contains five carbons with a double bond, giving 'pent-2-ene' when numbered to give the lowest locant to the double bond. The methyl substituent is located on carbon 4. The full IUPAC name becomes '4-methylpent-2-ene'. Other numbering options give higher locants and are not preferred. ChemLibreTexts
What is the IUPAC name for CH3COOCH2CH3?
Methyl acetate
Ethyl ethanoate
Ethyl acetate
Methyl ethanoate
Esters are named as alkyl alkanoates, where the alkyl part is from the alcohol and the acid-derived part uses the '-oate' suffix. Here, the alcohol fragment is ethyl (CH2CH3) and the acid fragment is ethanoate (from acetic acid). The correct IUPAC name is 'ethyl ethanoate'. 'Ethyl acetate' is common but less systematic. ChemLibreTexts
What is the IUPAC name for CH3-CH(OH)-CH2-COOH?
3-hydroxybutyric acid
3-hydroxybutanoic acid
2-hydroxybutanoic acid
4-hydroxybutanoic acid
The parent acid has four carbons, so the base name is 'butanoic acid'. The hydroxyl group is on carbon 3 when numbering from the carboxyl carbon to give the lowest locant set. Thus the correct name is '3-hydroxybutanoic acid'. Common names like '3-hydroxybutyric acid' are less systematic. ChemLibreTexts
What is the IUPAC name for the benzene derivative C6H4Cl2 where chlorine atoms are opposite each other on the ring?
1,2-dichlorobenzene
1,4-dichlorobenzene
1,3-dichlorobenzene
p-dichlorobenzene
In benzene derivatives, substituents are numbered to give the lowest possible set of locants. When two identical substituents are opposite, they occupy positions 1 and 4, leading to '1,4-dichlorobenzene'. The 'p-' prefix is a common name but '1,4-' is the IUPAC-formal locant. ChemLibreTexts
What is the IUPAC name for the bicyclic compound commonly known as norbornane?
norbornane
bicyclo[2.2.2]octane
bicyclo[2.2.1]heptane
bicyclo[3.2.1]octane
Bicyclic compounds use bracketed numbers to indicate the lengths of the bridges between bridgehead carbons. Norbornane has seven total carbons with bridges of lengths 2, 2, and 1. The systematic IUPAC name is 'bicyclo[2.2.1]heptane'. Common names like norbornane are not fully systematic. ChemLibreTexts
Which IUPAC name correctly describes the stereochemistry of the chiral center in 2-chlorobutane with the configuration giving a clockwise CIP sequence?
sec-chlorobutane
(S)-2-chlorobutane
2-chlorobutane
(R)-2-chlorobutane
The (R) designation indicates that, when the lowest-priority group is oriented away, the substituents decrease in priority in a clockwise direction according to the Cahn - Ingold - Prelog rules. Chlorine is the highest priority, followed by the ethyl, methyl, and hydrogen. The correct full IUPAC name is '(R)-2-chlorobutane'. Omitting the stereodescriptor yields an ambiguous name. ChemLibreTexts
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Study Outcomes

  1. Understand IUPAC nomenclature fundamentals -

    Grasp the basic rules and conventions used in the IUPAC system to name chemical compounds accurately.

  2. Apply systematic naming to simple molecular compounds -

    Use proper prefixes, locants, and suffixes to construct correct names for straightforward organic and inorganic molecules.

  3. Analyze and name complex structures -

    Break down multi-functional and branched molecules to determine parent chains and assign correct IUPAC names.

  4. Differentiate functional groups and substituents -

    Identify and prioritize functional groups, applying appropriate suffixes and prefixes during the naming process.

  5. Utilize strategic approaches in a chemistry nomenclature quiz setting -

    Implement step-by-step tactics to solve naming compounds quiz questions efficiently under time constraints.

  6. Evaluate and improve your naming accuracy -

    Review instant feedback from the quiz to pinpoint errors and strengthen your chemical nomenclature skills over time.

Cheat Sheet

  1. Identify the parent chain -

    Begin by finding the longest continuous carbon chain to determine your parent hydrocarbon; this is the backbone for naming compounds practice. For instance, a six-carbon chain is named "hexane" (IUPAC Blue Book). Accurate chain selection ensures correct suffix usage and consistent substituent placement.

  2. Number the chain for lowest locants -

    Assign carbon numbers so that substituents receive the lowest possible set of locants, following the "lowest set" rule from university-level chemistry nomenclature resources. For example, 2,3-dibromopentane outranks 3,4-dibromopentane because 2+3 is less than 3+4. Remember the mnemonic "Lowest On Carbon, Locate Accurately."

  3. Name and alphabetize substituents -

    Identify alkyl groups (methyl, ethyl) and functional substituents (chloro, fluoro) and list them alphabetically in your chemical nomenclature quiz answers. For example, "1-chloro-2-methylpropane" not "methyl-chloropropane." Consistent substituent naming from ACS guidelines boosts clarity and exam confidence.

  4. Use correct suffixes for functional groups -

    Select the proper suffix (-ol for alcohols, ‑one for ketones, ‑al for aldehydes) based on highest-priority functional groups, as taught in reputable organic chemistry texts. For instance, CH3CH(OH)CH3 becomes "propan-2-ol." A handy memory trick: "OH is happy, hence 'ol.'"

  5. Handle complex names and stereochemistry -

    For branched substituents, enclose them in parentheses and apply R/S or E/Z designations when needed, mirroring advanced IUPAC rules. An example is (R)-2-bromobutane, where CIP priority determines R or S. Practicing these in every naming compounds quiz sharpens both accuracy and speed.

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