Understanding IUPAC Nomenclature

What is the general formula for alkanes?

• C(n-1)H(2n-1)

• C2nHn+2

• CnH(2n+2)

• CnH2n

Name the first three alkenes in order of increasing carbon atoms.

• ethene, propene, butene

• pentene, hexene, heptene

• methene, ethane, propene

• butyne, hexene, heptene

What is the IUPAC name for the alkane with 5 carbon atoms?

• propane

• butane

• pentane

• hexane

How do you identify a cycloalkane from its structure?

• A cycloalkane is identified by a closed ring of carbon atoms with only single bonds.

• A cycloalkane is identified by a branched structure of carbon atoms.

• A cycloalkane has a linear chain of carbon atoms.

• A cycloalkane contains double bonds between carbon atoms.

What is the functional group present in alcohols?

• Carboxyl group (-COOH)

• Carbonyl group (C=O)

• Amino group (-NH2)

• Hydroxyl group (-OH)

Provide the IUPAC name for a cyclohexane with one methyl group.

• cyclohexylmethane

• methylcyclohexane

• methylcyclopentane

• dimethylcyclohexane

What is the difference between a saturated and an unsaturated hydrocarbon?

• Unsaturated hydrocarbons have only single bonds; saturated hydrocarbons have double or triple bonds.

• Saturated hydrocarbons have only single bonds; unsaturated hydrocarbons have double or triple bonds.

• Saturated hydrocarbons are more reactive than unsaturated hydrocarbons.

• Saturated hydrocarbons contain only double bonds; unsaturated hydrocarbons contain single bonds.

Name the functional group that characterizes carboxylic acids.

• Amino group

• Hydroxyl group

• Carbonyl group

• Carboxyl group

What is the IUPAC name for the alkene with the formula C3H6?

• Butene

• Propene

• Ethylene

• Cyclopropene

How do you determine the priority of functional groups in nomenclature?

• The priority of functional groups is determined by their reactivity and a specific IUPAC ranking order.

• The priority is determined by the color of the compounds.

• The priority is based solely on the number of carbon atoms.

• Functional groups are prioritized randomly without any specific order.