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Intro to chem exam past paper
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- Introduction to chemistry
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- University Of South Africa (Unisa)
Intro to chem exam past paper
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Faculty of Applied SciencesIntroduction to Chemistry
SCCH111
Exam – June 2017
Internal Examiner: Mr Jean N. Oyourou
Total Marks: 120
Duration: 3 Hours
Sub-minimum: 40%
Section A Multiple Choice Questions 25 Marks
Section B Short Questions 30 Marks
Section C Integrated Questions 65 Marks
Instructions to Candidates:
1. Read each question carefully.
2. You must answer ALL sections.
3. Answer all questions in the answer book provided.
4. All rough work should be done at the back of the answer book and indicated as such.
5. This exam paper may not be removed from the venue.
6. A periodic table is provided.
7. Scientific calculators can be used.
NB This test paper consists of 16 pages.
This examcontributes 50% towards the final mark.
EXAM PAPER A JUNE 2017 (SCCH111) Page 1 of 12
Pearson Institute of Higher Education
Formerly Midrand Graduate Institute
,Section A
Multiple Choice 1 mark per question 25 Marks
On the MCQ answer sheet provided, make a cross (X) over the alternative (a – e) that you have
chosen for each question. There is only one correct answer. There is no negative marking.
QUESTION ONE
Homogeneous mixtures are also known as:
a. solids
b. compounds
c. elements
d. substances
e. solutions (1)
QUESTION TWO
A set of cubes, each measuring 5 cm on each side, must be packed into a rectangular box with a
volume of 3000 cm3. How many cubes can fit into the box?
a. 120
b. 24
c. 300
d. 1.5
e. 19 (1)
QUESTION THREE
Which of the following is (are) the lowest temperature (s)?
a. The freezing point of water.
b. 5°C
c. 30°F
d. 280 K
e. A and D (1)
EXAM PAPER A JUNE 2017 (SCCH111) P a g e 2 | 16
Pearson Institute of Higher Education
Formerly Midrand Graduate Institute
, QUESTION FOUR
A certain liquid has a density of 2.67 g/cm 3. 1340 g of this liquid would occupy a volume of
__________ L.
a. 1.99 x 10-3
b. 50.2
c. 3.58
d. 35.8
e. 0.502 (1)
QUESTION FIVE
Nitrogen forms an ion with a charge of:
a. 2+
b. 3-
c. 3+
d. 5-
e. 5+ (1)
QUESTION SIX
Which pair of elements will form an ionic compound with each other?
a. barium, bromine
b. calcium, sodium
c. oxygen, fluorine
d. sulphur, fluorine
e. nitrogen, hydrogen (1)
QUESTION SEVEN
What is the molar mass of Na2SO4.10H2O?
a. 142.18 g/mol
b. 143.00 g/mol
c. 323.00 g/mol
d. 322.24 g/mol
e. 150.32 g/mol (1)
EXAM PAPER A JUNE 2017 (SCCH111) P a g e 3 | 16
Pearson Institute of Higher Education
Formerly Midrand Graduate Institute
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