10 minutes maximum

An IB Periodic Table is required.

1. Which of the following statements about homologous series is false?
  • A.   A homologous series is a group of compounds with the same molecular formula.
  • B.   The members of the homologous series have the same chemical properties.
  • C.   The compounds of the homologous series share the same functional group.
  • D.   Each member of the homologous series differs from the next by a common structural unit.

2. What is the IUPAC name for the compound shown in this diagram?

IUPAC organic molecule
  • A.   2-ethylbut-2-ene
  • B.   3-ethylbut-2-ene
  • C.   3-methylpent-2-ene
  • D.   3-methylpent-3-ene
3. How many structural isomers are there for C4H8?
  • A.   2
  • B.   3
  • C.   5
  • D.   6

Questions 4-6 are about the six organic compounds below labelled I, II, III, IV, V, VI:

Pentan-2-ol IUPAC organic molecule #2 CH3CHBrCH3
IV. V. VI.
IUPAC organic molecule #2 IUPAC organic molecule #3 IUPAC organic molecule #4

4. Which compounds are members of the halogenoalkane homologous series?

  • A. I and V
  • B. IV and VI 
  • C. II and III
  • D. I and III 

5. Which compounds are unsaturated?

  • A.  I, II, III
  • B.  III, IV, VI
  • C.  I, V, VI 
  • D.  IV, V, VI

6. Which compound is a secondary alcohol?

  • A. I
  • B. II
  • C. III
  • D. V

7. Which statements are correct about the molecule below?


I. Its molecular formula is C6H14O.
II. The molecule has an alcohol functional group.
III. It is a structural isomer of 2-propoxypropane.
  • A.   I only
  • B.   I and III only
  • C.   II and III only
  • D.   I, II and III
8. The molar masses of CH3(CH2)2CH3, CH3(CH2)2NH2 and CH3CH2Cl are similar. What is the correct order of their boiling points?
  • A.   CH3(CH2)2CH3 < CH3(CH2)2NH2 < CH3CH2Cl
  • B.   CH3CH2Cl < CH3(CH2)2NH2 < CH3(CH2)2CH3
  • C.   CH3CH2Cl < CH3(CH2)2CH3 < CH3(CH2)2NH2
  • D.   CH3(CH2)2CH3 < CH3CH2Cl < CH3(CH2)2NH2

9. Which functional groups are present in this molecule?

organic molecule image Q9

  • A. Alkenyl, phenyl, carboxyl, amine
  • B. Carbonyl, hydroxyl, alkenyl, phenyl, amine
  • C. Carboxamide, alkenyl, hydroxyl, phenyl
  • D. Phenyl, alkenyl, carboxyl, nitrile

10. What is the IUPAC name of this compound?

organic molecule image Q10

  • A.   propyl ethanoate
  • B.   1-methylethyl ethanoate
  • C.   ethyl propanoate
  • D.   ethyl 1-methylethanoate