AQA A Level Chem - Nomenclature - 3.3.2 L1

When naming an organic compound with a carbon chain of three what is the stem?

• prop-

• pent-

• but-

• prep-

What’s the IUPAC name for this molecule?

• 3-bromo-1-chloro-1-methylpropane

• 4-bromo-2-chlorobutane

• 1-bromo-3-chlorobutane

Which coloured carbon do we start naming from?

• Green

• Blue

• Red

What is the IUPAC name for this skeletal formula?

• Butane

• Hexene

• Hexane

• Heptane

What is the IUPAC name for this displayed formula?

• Cyclopentane

• Cyclohexane

• Hexane

• Cycloalkane

What is the definition of an empirical formula?

• The actual number of atoms of each element in a molecule

• 
• 

Which homologous series does the formula CH₃CHO belong to ?

• Ketone

• Aldehyde

• Carboxylic acid

Which prefix comes first in the IUPAC name?

• Ene

• Chloro

• Methyl

• Bromo

Why do IUPAC names exist ?

• It’s more professional

• Scientific ideas can be communicated across the globe more effectively

• is an agreed international language

• So it is easier for scientists to get on with testing each other’s work

What is the IUPAC name for this molecule?

• 2,4-dimethyl-3-ethyl-pentan-4-ol

• 3-ethyl-2,4-dimethyl-pentan-4-ol

• 2,4-dimethyl-3-ethyl-pentan-2-ol

• 3-ethyl-2,4-dimethyl-pentan-2-ol