Organic Chemistry Naming review

Which of the following pairs of compounds are not isomers

• CH3CH2CH2CH3 and CH3CH(CH3)CH3

• CH3OCH3 and CH3CH2OH

• CH3CHCl2 and CH2ClCH2Cl

• CH3CH2CH3 and CH3CH2CH2CH3

A compound has the molecular formula C3H9X. The atom X is most likely to be

• chlorine

• hydrogen

• nitrogen

• oxygen

A substance is in the same homologous series as chloroethane, CH3CH2Cl, is

• CH3CHCl2

• CH2CH2

• CH3CH3OH

• CH3CH2CH2Cl

A hydrocarbon has the molecular formula C6H10. If its structure does not contain any rings, how many carbon-to-carbon double bonds must be present?

• 0

• 1

• 2

• 3

The number of chloroalkene isomers with the molecular formula C3H5Cl is

• 1

• 2

• 3

• 4

A compound has the empirical formula CH2Cl. What is a possible name for this compound?

• Chloroethene

• 1,2-dichloroethene

• 1,2-dichloroethane

• Chloroethane

The ketone, butan-2-one, has the semi-structural formula CH3COCH2CH3. An isomer of this compound is most likely to be

• another ketone

• an aldehyde

• a carboxylic acid

• an ester

The compound that is not an isomer of 2,2,4-trimethylpentane is

• octane

• 3-ethylhexane

• 2,4-dimethylpentane

• 2,4-dimethylhexane

What is the name of the product formed when chlorine, Cl2, reacts with but-1-ene?

• 1,2-dichlorobutane

• 1,4-dichlorobutane

• 2,2-dichlorobutane

• 2,3-dichlorobutane

How many structural isomers have the molecular formula C3H6BrCl?

• 4

• 5

• 6

• 7