Question 1
a) Draw a well-labelled Bohr model representing the atomic structure of Carbon:
(2 marks)
b) Define the following terms:
i. Isotope
ii. Mass number
(2 marks)
c) Using your knowledge of the periodic table, explain how atomic radius down a
group:
(2 marks)
d) Give the full electron configurations of the following:
i. P:
ii. Al2+:
(2 marks)

e) Hexane under goes complete combustion. Compete the full balanced equation
below:
………… + ………… → ………. + …………
(2 marks)
Total 10 marks
Question 2
a) Using the Dot and Cross diagram, show and name the type of intramolecular
bonding that occurs in CH4. Draw the full dot and cross diagram:
Type of bond:
(2 marks)
b) Define the type of bond named in part a:
(1 mark)
c) Name the type of bonds occurring in the compounds:
i. F2 :
ii. NaF :
iii. Al2 :(3 marks)

d) List two types of Intermolecular bonds:
(2 mark)
e) Explain what type of intermolecular bonding occurs in water, and why:
(2 marks)
Total 10 marks

Question 3
a) Name 2 fractions in the process of fractional distillation:
(2 marks)
b) Consider the linear molecule with a condensed structure of CH3CH2CH2CH2R.
Substitute R for the functional group of the family listed below, and name the
compound:
i. Haloalkane (Br):
ii. Alcohol:
iii. Amine:
(3 marks)

c) Explain the difference in classifying alcohols and amines in primary, secondary and
tertiary:
(2 marks)
d) Each homologous series has its own general formula. State two other characteristics
of a homologous series.
(2 marks)
e) Give the general formula for the following:
a. Alkanes:
b. Alkenes
(2 mark)

f) Draw the displayed structure of the below compounds and name them.
i. CH2(OH)CH₃
Structure:
Name:
ii. CH₃CH₂CH2CH2CHO
Structure:
Name:
(4 marks)
Total 15 marks

Chemistry