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1) In a typical multiple bond, the σ bond results from overlap of ________ orbitals and
the π bond(s) result from overlap of ________ orbitals.
A) hybrid, atomic
B) hybrid, hybrid
C) atomic, hybrid
D) hybrid, hybrid or atomic
E) hybrid or atomic, hybrid or atomic
2) A mole of yellow photons of wavelength 527 nm has ________ kJ of energy.
A) 165
B) 227
C) 4.56 X 10-46
D) 6.05 X 10-3
E) 2.74 X 10-19
3) Hybridization of the carbon atom indicated by (*) in CH3-*CH2-CH3, *CH2CH2,
and CH3-*CCH is ________, ________, and ________, respectively.
A) sp3, sp2, sp
B) sp3, sp, sp2
C) sp, sp2, sp3
D) sp, sp3, sp2
E) sp2, sp3, sp
4) Of the reactions involved in the photodecomposition of ozone (shown below), which
are exothermic?
1. O2 (g) + h½ --> O (g) + O (g)
2. O (g) + O2(g) + M (g) --> O3(g) + M* (g)
3. O3(g) + h½ --> O2 (g) + O (g)
4. O (g) + O (g) + M (g) --> O2 (g) + M* (g)
A) 2 and 4
B) 1 and 3
C) 1, 2, and 4
D) 2 only
E) all of them
5) 1.55 kg/m3 is equivalent to ________ g/L.
A) 3.58 X 1012
B) 1.95 X 103
C) 6.83
D) 1.60 X 109
E) 1.55
6) The molecular geometry of the CHCl3 molecule is ________.
A) bent
B) trigonal planar
C) trigonal pyramidal
D) tetrahedral
E) T-shaped
7) Which statement below correctly describes the responses of alpha, beta, and gamma
radiation to an electric field?
A) Both beta and gamma are deflected in the same direction, while alpha shows no
response.
B) Both alpha and gamma are deflected in the same direction, while beta shows no
response.
C) Both alpha and beta are deflected in the same direction, while gamma shows no
response.
D) Alpha and beta are deflected in opposite directions, while gamma shows no
response.
E) Only alpha is deflected, while beta and gamma show no response.
8) In the following list, only ________ is not an example of a chemical reaction.
A) burning a plastic water bottle
B) the production of hydrogen gas from water
C) the tarnishing of a copper penny
D) chopping a log into sawdust
E) charging a cellular phone
9) Objects can possess energy as ________.
(a) endothermic energy
(b) potential energy
(c) kinetic energy
A) a only
B) b only
C) c only
D) a and c
E) b and c
10) If matter is uniform throughout and cannot be separated into other substances by
physical means, it is ________.
A) a compound
B) either an element or a compound
C) a homogeneous mixture
D) a heterogeneous mixture
E) an element
11) Of the following, which gives the correct order for atomic radius for Ca, K, As, Ge
and Kr?
A) Ca > K > As > Ge > Kr
B) Kr > Ge > As > K > Ca
C) Ge > As > Kr > K > Ca
D) K > Ca > Ge > As > Kr
E) Kr > As > Ge > Ca > K
12) How many equivalent resonance forms can be drawn for SO2 without expanding
octet on the sulfur atom? (Sulfur is the central atom.)
A) 0
B) 2
C) 3
D) 4
E) 1
13) Which of the following compounds do not contain an sp3 hybridized oxygen atom?
A) ketones
B) alcohols
C) ethers
D) esters
E) water
14) What geometric shape will the structure of cyclohexane appear as when drawn as a
line structure?
A) hexagon
B) heptagon
C) octagon
D) triangle
E) square
