OCR A Chemistry – 'Basic Organic' 4.1.1(b-d)

This is a simplified formula, where hydrogen atoms are removed from alkyl chains, leaving just a carbon skeleton and associated functional groups

• empirical formula

• displayed formula

• structural formula

• skeletal formula

This formula gives minimal detail that shows the arrangement of atoms in a molecule

• structural formula

• displayed formula

• skeletal formula

• molecular formula

This formula is the simplest algebraic formula of a member of a homologous series

• molecular

• empirical

• general

• structural

Which pair are within the same homologous series?

• butane and methylpropane

• ethane and ethanol

• pentane and octane

• prop-1-en-1-ol and prop-2-en-1-ol

If a molecule contains a 'benzene ring' is must be what?

• flammable

• aliphatic

• alicyclic

• aromatic

cyclohexane means what?

• hexane with a cyclo functional group attached

• C₆H₁₂

• a form of hexane where all the bond angles add up to 360°

• a hexane molecule containing an octahedral carbon

Which is unsaturated, aliphatic and has alkyl chains

• cyclohexane

• 2-methylpropene

• 2,3-dimethyloctane

• 1,3-dimethylbenzene

Which is the best definition for a 'homologous series'

• a series of organic compounds having the same functional group but with each successive member differing by CH₂

• a series of compounds having the same functional group but increasing their structure by CH₂

• a series of organic compounds having the same functional group but the carbon chain grows by CH₂ every time

• a series of alkanes having the same functional group but with each successive member differing by CH₂

"cyclohexane is technically unsaturated because it doesn't have the maximum amount of H atoms for the number of C atoms"

• TRUE

• FALSE

molecules containing (non-aromatic) rings of carbon atoms are...