University of Toronto CHMA10: Past Final Exam Practice Questions and Solutions

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University of Toronto




Past Final Exam Practice
Questions and Solutions



Course: CHMA10 Introductory Chemistry I

, Multiple Choice Questions (1 Mark Each, Total Marks = 50)
Your multiple choice answers MUST be transferred to the scantron DURING the time allotted for the test.
ONLY THE ANSWERS ON THE SCANTRON SHEET WILL BE SCORED
1) Choose the best Lewis structure for BeF2.
A)
B)
C)
D)
E)


2) Determine the identity of the daughter nuclide from the positron emission of O.



A) F B) C C) N D) C E) N


3) Determine the molecular geometry for the molecule PCl5.
A) Linear
B) Square planar
C) Trigonal bipyramidal
D) Square pyramidal
E) Seesaw

4) Calculate the amount of heat (in kJ) required to raise the temperature of a 79.0 g sample of ethanol from
298.0 K to 385.0 K. The specific heat capacity of ethanol is 2.42 J g-1 °C-1.

A) 16.6 kJ B) 73.6 kJ C) 28.4 kJ D) 12.9 kJ E) 57.0 kJ

5) Give the approximate bond angle for a molecule with an octahedral shape.

A) 109.5° B) 180° C) 120° D) 105° E) 90°

6) What element is being oxidized in the following (unbalanced) redox reaction?

Zn2+(aq) + NH4+(aq) → Zn(s) + NO3⁻(aq)


A) N B) O C) Zn D) H