chapter4part4

1) In which species does sulfur have the highest oxidation number?

• A) S₈ (elemental form of sulfur)

• B) H_2S

• C) SO₂

• D) H₂SO₃

• E) K₂SO₄

2) In which species does nitrogen have the highest oxidation number?

• A) N₂

• B) NH₃

• C) HNO₂

• D) NO₂-

• E) NaNO₃

3) Which compound has the atom with the highest oxidation number?

• A) CaS

• B) Na₃N

• C) MgSO₃

• D) Al(NO₂)₃

• E) NH₄Cl

4) Of the choices below, which would be the best for the lining of a tank intended for use in storage of hydrochloric acid?

• A) copper

• B) zinc

• C) nickel

• D) iron

• E) tin

5) Which of these metals will be oxidized by the ions of cobalt?

• A) nickel

• B) tin

• C) iron

• D) copper

• E) silver

6) Which of these metals will be oxidized by the ions of aluminum?

• A) magnesium

• B) zinc

• C) chromium

• D) iron

• E) nickel

7) One method for removal of metal ions from a solution is to convert the metal to its elemental form so it can be filtered out as a solid. Which metal can be used to remove aluminum ions from solution?

• A) zinc

• B) cobalt

• C) lead

• D) copper

• E) none of these

8) Of the reactions below, only __________ is not spontaneous.

• A) Mg (s) + 2HCl (aq) → MgCl₂ (aq) + H₂ (g)

• B) 2Ag (s) + 2HNO₃ (aq) → 2AgNO₃ (aq) + H₂ (g)

• C) 2Ni (s) + H₂SO₄ (aq) → Ni₂SO₄ (aq) + H₂ (g)

• D) 2Al (s) + 6HBr (aq) → 2AlBr_3 (aq) + 3 H₂ (g)

• E) Zn (s) + 2HI (aq) → ZnI₂ (aq) + H₂ (g)

9) Based on the activity series, which one of the reactions below will occur?

• A) Zn (s) + MnI₂ (aq) → ZnI₂ (aq) + Mn (s)

• B) SnCl₂ (aq) + Cu (s) → Sn (s) + CuCl₂ (aq)

• C) 2AgNO₃ (aq) + Pb (s) → 2Ag (s) + Pb(NO₃)₂ (aq)

• D) 3Hg (l) + 2Cr(NO₃)₃ (aq) → 3Hg(NO₃)₂ + 2Cr (s)

• E) 3FeBr₂ (aq) + 2Au (s) → 3Fe (s) + 2AuBr₃ (aq)

10) Based on the activity series, which one of the reactions below will occur?

• A) Fe (s) + ZnCl₂ (aq) → FeCl₂ (aq) + Zn (s)

• B) Mn (s) + NiCl₂ (aq) → MnCl₂ (aq) + Ni (s)

• C) Pb (s) + NiI₂ (aq) → PbI₂ (aq) + Ni (s)

• D) SnBr₂ (aq) + Cu (s) → CuBr₂ (aq) + Sn (s)

• E) None of the reactions will occur.