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6. Which homologous series has the functional group -COC-?

  • ketones
  • aldehydes
  • esters
  • alcohols

7. How many carbon atoms in 3-ethyl-2,3-dimethylpentane

  • 10
  • 9
  • 11
  • 12

8. What are isomers?

  • Two molecules that has the same molecular formula and their atoms are arrange the same
  • Two molecules that are totally different
  • Two molecules that have the same molecular formula but their atoms are arranged differently
  • Two molecules that have the same functional group but a different molecular formula

9. What are stereoisomers?

  • Same structural formula but different arrangement in space
  • Same arrangement but with different number of bonds

10. Which homologous series has the functional group CHO?

  • esters
  • ketones
  • aldehydes
  • acyl chlorides

11. If 2 atoms are the same, when working out priorities of groups attached to a C=C bond, what do you do?

  • They cannot be the same, check your working
  • Look at the next atom along that they are attached to and whichever has largest molecular formula has highest prioty
  • Find an average, eg if determining priorities 2 and 3, they both has priority 2.5

12. Which homologous series has the functional group -COCl?

  • acyl chlorides
  • arenes
  • halogenoalkanes
  • halogens

13. What are chain isomers?

  • They have a different arrangement of the carbon skeleton
  • Same skeleton and same atoms/groups attached but that the atom or groups of atoms is attached to different carbon atom
  • Same atoms arranged into different functional groups

14. Cycloalkanes have the same general formula as....?

  • arenes
  • alkenes
  • ketones
  • branched alkanes

15. What is the definition of empirical formula?

  • An algebraic formula that can describe any member of a family of compounds
  • The simplest ratio of atoms in a compound
  • The actual number of atoms of each element in a molecule
  • Shows the atoms carbon by carbon, with the attached hydrogens and functional group

16. What system is used for naming organic compounds?

  • RSC
  • IRSC
  • IUPAC
  • MBDC

17. Which homologous series is named with the suffix '-al'?

  • alcohols
  • aldehydes
  • alkenes
  • ketones

18. A molecule has the stem 'but-' if its carbon chain is.... carbons long

  • 4
  • 5
  • 6
  • 3

19. What does a E-isomer have?

  • The two highest priority groups on opposite sides of the C=C bond
  • The two highest priority groups on the same side of the C=C bond

20. What is the functional group for carboxylic acids?

  • -OH
  • -COOH
  • -COO-
  • -CHO