Understanding Nomenclature

What is a functional group in organic chemistry?

• A functional group is a type of chemical reaction.

• A functional group is a specific group of atoms in a molecule that determines its chemical properties.

• A functional group is a measurement of molecular weight.

• A functional group is a single atom in a molecule.

Name the functional group represented by -OH.

• Amino group

• Hydroxyl group

• Carboxyl group

• Carbonyl group

What is the IUPAC name for CH3-CH2-CH2-CH3?

• butane

• hexane

• pentane

• propane

Identify the functional group in CH3COOH.

• Ketone group (C=O)

• Aldehyde group (-CHO)

• Carboxyl group (-COOH)

• Hydroxyl group (-OH)

What is the general formula for alkanes?

• CnH(2n+2)

• CnH2n

• C2nHn

• CnH(2n-2)

What is the functional group in an amine?

• The functional group in an amine is -NH2 (amino group).

• -COOH (carboxyl group)

• -OH (hydroxyl group)

• -CHO (aldehyde group)

How do you name a branched alkane?

• Use the alphabetical order of branches only.

• Ignore the longest chain and name branches first.

• Identify the longest chain, number it, name branches, and combine names.

• Count the total number of carbons only.

What is the IUPAC name for C2H5OH?

• Butanol

• Propanol

• Methanol

• Ethanol