Alkane, Alkene, Alkyne & Functional Groups QuizOnline version
by Supajitra
Q1: What type of representation is shown when ethane is drawn with no H atoms shown, only the C–C bond?
Q2: C2H2 belongs to which family?
Q3: Which representation shows the hydroxyl group (-OH) as part of an alcohol?
Q4: To show lone pairs on oxygen in a carboxylic acid, which representation is most informative?
Q5: Which class of hydrocarbons has only single bonds between carbons?
Q6: C2H4 is an example of which family?
Q7: The functional group -COOH is characteristic of which class?
Q8: Which representation best shows multiple bonds clearly (e.g., C≡C, C=C)?
Q9: What is the IUPAC class name for C2H5OH?
Q10: A Lewis structure shows valence electrons, lone pairs, and bonds. True or false?
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Skeletal structures omit most hydrogens and focus on the carbon framework.
C2H2 contains a C≡C triple bond, characteristic of alkynes.
Molecular formula lists atoms; the -OH group is visible in Lewis or skeletal drawings.
Lewis structures display valence electrons and lone pairs clearly.
Alkanes are saturated hydrocarbons with only single C–C bonds.
C2H4 contains a C=C double bond, characteristic of alkenes.
The carboxyl group defines carboxylic acids.
Skeletal (line-angle) drawings emphasize bonds, including multiple bonds.
C2H5OH is ethanol, an alcohol.
Lewis structures explicitly depict valence electrons and lone pairs.