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Aquinas
College
CHEM 1003
Semester 1
Examination,
2025-2026
Question &
Answers(GUARAN
TEED SUCCESS)
CHEMISTRY
Stage 3
Student Number: In figures
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TIME ALLOWED FOR THIS EXAMINATION
Reading time before Ten
commencing: minutes
Working time for paper: Three
hours
Materials required
To be provided by the supervisor
This Question/Answer Booklet
Multiple-choice Answer Sheet
Chemistry Data Sheet
To be provided by the candidate
Standard items: pens, pencils, pencil sharpener, eraser, correction
fluid/tape, ruler, highlighters
Special items: non-programmable calculators satisfying the conditions
set out by the Curriculum Council for this course
Important note to candidates
No other items may be used in this examination. It is your responsibility
to ensure that you do not have any unauthorised notes or other items of a
non-personal nature in the examination room. If you have any
unauthorised material with you, hand it to the supervisor before reading
any further.
Structure of this paper
Number Number Suggested
of of working
time Marks Percentage
Section questions questions
available to be (minutes) available of exam
answered
Section
One:2525 25 50 50
252 25%
Multiple- 50 50 25
choice
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Section
Two: 9 60 70
9 35%
Short 60 70 35
answer12
Section
Three:6 8 70 80
8 40%
Extended 70 80 40
answer
100 100%
Instructions to candidates
The rules for the conduct of Western Australian external examinations are
detailed in the Year 12 Information Handbook 2012. Sitting this
examination implies that you agree to abide by these rules.
Answer the questions according to the following instructions.
Section One: Answer all questions on the separate Multiple-choice
Answer Sheet provided. For each question shade the box to indicate
your answer. Use only a blue or black pen to shade the boxes. If you
make a mistake, place a cross through that square, do not erase or use
correction fluid, and shade your new answer. Marks will not be
deducted for incorrect answers. No marks will be given if more than one
answer is completed for any question. Sections Two and Three: Write
answers in this Question/Answer Booklet.
When calculating numerical answers, show your working or reasoning
clearly unless instructed otherwise. Answer all questions to 3
significant figures.
You must be careful to confine your responses to the specific questions
asked and to follow any instructions that are specific to a particular
question.
Spare pages are included at the end of this booklet. They can be used for
planning your responses and/or as additional space if required to continue
an answer.
• Planning: If you use the spare pages for planning, indicate this
clearly at the top of the page.
FOR MORE EXAMS
EMAIL:
, FOR MORE EXAMS
EMAIL:
Continuing an answer: If you need to use the space to continue an
•
answer, indicate in the original answer space where the answer is
continued, i.e. give the page number. Fill in the number of the
question(s) that you are continuing to answer at the top of the
page.
Section One: Multiple-choice 25% (50 Marks) This section has 25
questions. Answer all questions on the separate Multiple-choice Answer
Sheet provided. For each question shade the box to indicate your answer.
Use only a blue or black pen to shade the boxes. If you make a mistake,
place a cross through that square, do not erase or use correction fluid, and
shade your new answer. Marks will not be deducted for incorrect answers.
No marks will be given if more than one answer is completed for any
question. Suggested working time for this section is 50 minutes.
1. For the substances C (graphite), N2, C3H8 and C2H5OH, which of the
following correctly represents them in order of increasing melting point?
a) N2, C3H8, C2H5OH, C
b) N2, C, C3H8, C2H5OH
c) N2, C, C2H5OH, C3H8
d) C3H8, N2, C2H5OH, C
2. Which one of the following observations can be explained in terms of
hydrogen bonding?
a) The boiling point of H2S is greater than that of PH3.
b) The melting point of CH3F is less than that of PH3.
c) The boiling point of CH3NH2 is greater than that of H2S.
d) The melting point of HI is greater than that of NH3.
3. The symbols and respective Element Electronegativities
electronegativities for elements in a L 2.0
hypothetical universe are given in the M 3.5
table to the right: Q 0.9
R 2.5
FOR MORE EXAMS
EMAIL:
EMAIL:
Aquinas
College
CHEM 1003
Semester 1
Examination,
2025-2026
Question &
Answers(GUARAN
TEED SUCCESS)
CHEMISTRY
Stage 3
Student Number: In figures
FOR MORE EXAMS
EMAIL:
, FOR MORE EXAMS
EMAIL:
TIME ALLOWED FOR THIS EXAMINATION
Reading time before Ten
commencing: minutes
Working time for paper: Three
hours
Materials required
To be provided by the supervisor
This Question/Answer Booklet
Multiple-choice Answer Sheet
Chemistry Data Sheet
To be provided by the candidate
Standard items: pens, pencils, pencil sharpener, eraser, correction
fluid/tape, ruler, highlighters
Special items: non-programmable calculators satisfying the conditions
set out by the Curriculum Council for this course
Important note to candidates
No other items may be used in this examination. It is your responsibility
to ensure that you do not have any unauthorised notes or other items of a
non-personal nature in the examination room. If you have any
unauthorised material with you, hand it to the supervisor before reading
any further.
Structure of this paper
Number Number Suggested
of of working
time Marks Percentage
Section questions questions
available to be (minutes) available of exam
answered
Section
One:2525 25 50 50
252 25%
Multiple- 50 50 25
choice
FOR MORE EXAMS
EMAIL:
,FOR MORE EXAMS
EMAIL:
Section
Two: 9 60 70
9 35%
Short 60 70 35
answer12
Section
Three:6 8 70 80
8 40%
Extended 70 80 40
answer
100 100%
Instructions to candidates
The rules for the conduct of Western Australian external examinations are
detailed in the Year 12 Information Handbook 2012. Sitting this
examination implies that you agree to abide by these rules.
Answer the questions according to the following instructions.
Section One: Answer all questions on the separate Multiple-choice
Answer Sheet provided. For each question shade the box to indicate
your answer. Use only a blue or black pen to shade the boxes. If you
make a mistake, place a cross through that square, do not erase or use
correction fluid, and shade your new answer. Marks will not be
deducted for incorrect answers. No marks will be given if more than one
answer is completed for any question. Sections Two and Three: Write
answers in this Question/Answer Booklet.
When calculating numerical answers, show your working or reasoning
clearly unless instructed otherwise. Answer all questions to 3
significant figures.
You must be careful to confine your responses to the specific questions
asked and to follow any instructions that are specific to a particular
question.
Spare pages are included at the end of this booklet. They can be used for
planning your responses and/or as additional space if required to continue
an answer.
• Planning: If you use the spare pages for planning, indicate this
clearly at the top of the page.
FOR MORE EXAMS
EMAIL:
, FOR MORE EXAMS
EMAIL:
Continuing an answer: If you need to use the space to continue an
•
answer, indicate in the original answer space where the answer is
continued, i.e. give the page number. Fill in the number of the
question(s) that you are continuing to answer at the top of the
page.
Section One: Multiple-choice 25% (50 Marks) This section has 25
questions. Answer all questions on the separate Multiple-choice Answer
Sheet provided. For each question shade the box to indicate your answer.
Use only a blue or black pen to shade the boxes. If you make a mistake,
place a cross through that square, do not erase or use correction fluid, and
shade your new answer. Marks will not be deducted for incorrect answers.
No marks will be given if more than one answer is completed for any
question. Suggested working time for this section is 50 minutes.
1. For the substances C (graphite), N2, C3H8 and C2H5OH, which of the
following correctly represents them in order of increasing melting point?
a) N2, C3H8, C2H5OH, C
b) N2, C, C3H8, C2H5OH
c) N2, C, C2H5OH, C3H8
d) C3H8, N2, C2H5OH, C
2. Which one of the following observations can be explained in terms of
hydrogen bonding?
a) The boiling point of H2S is greater than that of PH3.
b) The melting point of CH3F is less than that of PH3.
c) The boiling point of CH3NH2 is greater than that of H2S.
d) The melting point of HI is greater than that of NH3.
3. The symbols and respective Element Electronegativities
electronegativities for elements in a L 2.0
hypothetical universe are given in the M 3.5
table to the right: Q 0.9
R 2.5
FOR MORE EXAMS
EMAIL:
