Nomenclature

Test Review

Choose the correct oxidation number

a. +2b. +1c. 0d. -1e. -2

1. The oxidation number of hydrogen in a hydroxide ion

2. The oxidation number of magnesium ion

3. The oxidation number of sulfur in sulfur monoxide

4. Which of the following is not paired correctly?

a. Hydrobromic acid; HBrb. Chloric acid; HClO3c. Nitric acid; HNO2d. Perchloric acid; HClO4e. Hydrocyanic acid; HCN

5. What is the correct name for Co2S3?

a. Dicoblat trisulfideb. Cobalt (II) sulfatec. Cobalt (II) sulfided. Cobalt (III) sulfatee. Cobalt (III) sulfide

6. Which of the following is the correct formula for sulfuric acid?

a. H2Sb. H2SOc. H2SO2d. H2SO3e. H2SO4

7. Which of the oxyanions have a charge of -2?

I. CO3II. ClO4III. NO3

a. I onlyb. II onlyc. III onlyd. I and IIe. I and III

8. What is the oxidation number of Cr in CrO4

-2?a. -6b. +6c. -4d. +4e. -8f. +8

9. Which of the following are paired incorrectly?

a. Ethane; C2H6

b. Propanol; C3H7OH

c. Butene; C4H10

d. Propyne; C3H4

e. Methane; CH4

10. The oxidation state for carbon is lowest in which of the following?

a. Carbonate ionb. Bicarbonate ionc. Carbon monoxided. Carbon dioxidee. Carboxylate ion

11. An ionic chemical compound has the formula M2SO4.

Which of the following is the most likely identity of M?

a. Aluminumb.Fluorinec. Magnesiumd.Potassiume.Zinc

12. If you were to write the chemical formula for cobalt (III) oxide, what

would be the subscripts?

a. 2, 1b.3, 2c. 2, 3d.1, 2e.1, 1

13. What is the correct name for S2O3?

a. Sulfur oxideb. Sulfur trioxidec. Disulfur trioxided. Sulfur (III) oxidee. thiosulfate