Target: 10 Questions in 10 minutes

An IB Chemistry data booklet is helpful

1. What is the IUPAC name for this compound?

Naming Organic compounds Q1
  • A.   2-bromo-3-methylbutane
  • B.   2-methyl-3-bromobutane
  • C.   3-bromo-2-methylbutane
  • D.   3-methyl-2-bromobutane

2.  How many structural isomers are there for C4H8?

  • A.   2
  • B.   3
  • C.   5
  • D.   6

3. What is the structure of 3-methylpent-2-ene?

  • A. organic compound Q3a
  • B. organic compound Q3b
  • C. organic compound Q3c
  • D. organic compound Q3d

4. Which of the following pairs of molecules are position isomers?

  • A.  CH3CH2COOH     and    CH3COOCH3
  • B.  CH3CH2CH2OH     and    CH3CH(OH)CH3
  • C.  CH3CH2CH2OH     and    CH3OCH2CH3
  • D. organic compound Q8c   and   organic compound Q8c

 
5. What is the IUPAC name of this compound? organic molecule Q5
  • A. 1-methyl-3-ethylbutanone
  • B. 4-methylhexan-3-one
  • C. 2-ethylpentan-3-one
  • D. 3-methylhexan-4-one

6. Which type(s) of amines are present in a molecule of tryptophan, as shown in the diagram?

tryptophan molecule

I. Primary amine
II. Secondary amine
III. Tertiary amine
  • A.   I and II only
  • B.   I and III only
  • C.   II and III only
  • D.   I, II and III
7. The molecules CH3CH2CHO and CH3COCH3 are an example of ...
  • A.   Chain isomers
  • B.   Position isomers
  • C.   Functional group isomers
  • D.   Non-structural isomers

8. Which of the following pairs of molecules are identical?

  • A.   organic compound Q8ai    and     organic compound Q8aii
  • B.  CH2BrCH2Br    and     CH3CHBr2
  • C.  (CH3)3CCHC(CH3)2    and   organic compound Q8c
  • D.  hexan-2-ol   and   
    CH3CH2CH(OH)(CH2)2CH3

 
9. Which of the following molecules is a primary alcohol?
  • A.  Hexan-2-ol
  • B.  CH3OCH2CH3
  • C.  2-methylbutan-1-ol
  • D.  organic compound Q9

10. Which statement(s) about the compound shown in the diagram below is/are correct?

Organic compound Q10

I. The IUPAC name of this compound is 3-chlorobutane
II. The compound has four other structural isomers
III. The compound belongs to the homologous series of halogenoalkanes
 
  • A.   I only
  • B.   II only
  • C.   III only
  • D.   II and III only