VERSION 1. ANSWER KEY
1. The rate constant K is dependent on:
I. The concentration of the reactant.
II. The nature of the reactant.
III. The temperature
IV. The order of the reaction
A. None of these
B. One of these
C. Two of these
D. Three of these
2. Choose the solid that has the smallest ionization energy.
A. Be(s)
B. Mg(s)
C. Ca(s)
D. Ba(s)
3. What group 6A elements are semiconductors?
A. Selenium and polonium
B. Tellurium and polonium
C. Sulfur and selenium
D. Selenium and Tellurium
4. Which is the most reactive form of phosphorus?
A. Black phosphorus
B. White phosphorus
C. Red phosphorus
D. Two of these are equally reactive
5. Which of the following is not a possible oxidation state of nitrogen.
A. +2
B. +1
C. 0
D. -4
,6. The strongest reducing agent in the alkali metals is?
A. K
B. Na
C. Cs
D. Li
7. Which group 5A element cannot form molecules with 5 covalent bonds?
A. N
B. P
C. As
D. Bi
8. What heavy metal is the most abundant and most important to our civilization?
A. Iron
B. Gold
C. Magnesium
D. Cobalt
9. Which of the following statements is typically true for a catalyst?
A. The concentration of the catalyst will go down as reaction proceeds.
B. The catalyst provides a new pathway in the reaction mechanism.
C. The catalyst speeds up reaction.
D. Two of these.
10. An element common to brass and bronze is?
A. Nickel
B. Tin
C. Copper
D. Iron
11. Identify the INCORRECT statement below concerning chemical kinetics:
A. The rate of chemical reaction changes with time.
B. The rate constant of a reaction generally depends on the concentrations of
species.
C. The rate of a chemical reaction is affected by the temperature of the
reaction.
, D. The rate law of a chemical reaction bears no relationship with the
balancing coefficients of the overall reaction.
12. Which of the following is the INCORRECT Statement?
A. Reduction results in a decrease in oxidation number.
B. The oxidation number of oxygen atoms in ozone, 03, is zero.
C. Reduction is a loss of electrons.
D. The oxidizing agent in a redox reaction is reduced.
13. Which types of processes are likely when the neutron-to-proton ratio in a nucleus is
too low?
I. α decay
II. β decay
III. positron production
IV. Electron Capture
A. I, II
B. II, III
C. III, IV
D. II, III, IV
14. Which substance is being oxidized in the following reaction? Zn(s) + 4 CN – (aq) +
Ag2Cr4(s) 🡪 Zn (CN) 4 2- + 2 Ag(s) + CrO4 2- (aq)
A. CN – (aq) ions
B. Ag9s)
C. Zn(s)
D. Ag +(aq) ions
15. The rate law for the iodine clock reaction is given by: Rate = k[IO3-][l-]2[H+]2
A. This reaction is first order with respect to IO3 – and third order overall.
B. This reaction is second order with respect to I- and 3rd order overall.
C. This reaction is first order with respect to IO3 – and fifth order overall.
D. This reaction is third order with respect to H+.
16. Which of the following is a D7?
A. Co(ll)
B. Cu (II)
C. Mn (III)
D. Mn (IV) ion
1. The rate constant K is dependent on:
I. The concentration of the reactant.
II. The nature of the reactant.
III. The temperature
IV. The order of the reaction
A. None of these
B. One of these
C. Two of these
D. Three of these
2. Choose the solid that has the smallest ionization energy.
A. Be(s)
B. Mg(s)
C. Ca(s)
D. Ba(s)
3. What group 6A elements are semiconductors?
A. Selenium and polonium
B. Tellurium and polonium
C. Sulfur and selenium
D. Selenium and Tellurium
4. Which is the most reactive form of phosphorus?
A. Black phosphorus
B. White phosphorus
C. Red phosphorus
D. Two of these are equally reactive
5. Which of the following is not a possible oxidation state of nitrogen.
A. +2
B. +1
C. 0
D. -4
,6. The strongest reducing agent in the alkali metals is?
A. K
B. Na
C. Cs
D. Li
7. Which group 5A element cannot form molecules with 5 covalent bonds?
A. N
B. P
C. As
D. Bi
8. What heavy metal is the most abundant and most important to our civilization?
A. Iron
B. Gold
C. Magnesium
D. Cobalt
9. Which of the following statements is typically true for a catalyst?
A. The concentration of the catalyst will go down as reaction proceeds.
B. The catalyst provides a new pathway in the reaction mechanism.
C. The catalyst speeds up reaction.
D. Two of these.
10. An element common to brass and bronze is?
A. Nickel
B. Tin
C. Copper
D. Iron
11. Identify the INCORRECT statement below concerning chemical kinetics:
A. The rate of chemical reaction changes with time.
B. The rate constant of a reaction generally depends on the concentrations of
species.
C. The rate of a chemical reaction is affected by the temperature of the
reaction.
, D. The rate law of a chemical reaction bears no relationship with the
balancing coefficients of the overall reaction.
12. Which of the following is the INCORRECT Statement?
A. Reduction results in a decrease in oxidation number.
B. The oxidation number of oxygen atoms in ozone, 03, is zero.
C. Reduction is a loss of electrons.
D. The oxidizing agent in a redox reaction is reduced.
13. Which types of processes are likely when the neutron-to-proton ratio in a nucleus is
too low?
I. α decay
II. β decay
III. positron production
IV. Electron Capture
A. I, II
B. II, III
C. III, IV
D. II, III, IV
14. Which substance is being oxidized in the following reaction? Zn(s) + 4 CN – (aq) +
Ag2Cr4(s) 🡪 Zn (CN) 4 2- + 2 Ag(s) + CrO4 2- (aq)
A. CN – (aq) ions
B. Ag9s)
C. Zn(s)
D. Ag +(aq) ions
15. The rate law for the iodine clock reaction is given by: Rate = k[IO3-][l-]2[H+]2
A. This reaction is first order with respect to IO3 – and third order overall.
B. This reaction is second order with respect to I- and 3rd order overall.
C. This reaction is first order with respect to IO3 – and fifth order overall.
D. This reaction is third order with respect to H+.
16. Which of the following is a D7?
A. Co(ll)
B. Cu (II)
C. Mn (III)
D. Mn (IV) ion
