Questions 4–8
A. SO 2
B. SiH 4
C. CO 2
D. Be 2
E. NO
- In which of the choices is there polar
double bonding in a nonpolar
molecule?
- In which molecule(s) does resonance
occur?
- In which molecule is the bond
order 2^1 ⁄2?
- Which of the molecules has four sp^3
hybrid bonds?
- Which molecule would you expect to
be unstable on the basis of molecular
orbital theory?
Questions 9–11
A. − 78 °C
B. − 57 °C, 5.1 atm
C. 31 °C, 73 atm
D. 31 °C
E. None of the above.
- What does the phase diagram above
show to be the normal boiling point of
carbon dioxide?
10. Which point represents the critical
point?
- Which point represents the triple point?
temperature
gas
solid liquid
(Figure not drawn to scale)
73.0
-78°C -57°C31°C
5.1
0.5
pressure (atm)
Practice Test
Section
I
Multiple-Choice Questions
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