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Lesson 1 Quiz: Qualitative Analysis of Acidic Radicals (Anions)

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  • Questions count: 20
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1.
STEM Analytical Chemistry Problem 7: When dilute hydrochloric acid (HCl) is added to a solid unknown salt, a colorless gas evolves that turns paper moistened with acidified potassium dichromate from orange to green. What is the anion?
Sulfide anion (S2−) producing H2S
Thiosulfate anion producing SO2 and yellow sulfur precipitate
Sulfite anion (SO32−) producing sulfur dioxide gas (SO2)
Carbonate anion (CO32−) producing CO2
2.
STEM Analytical Chemistry Problem 25: When dilute hydrochloric acid (HCl) is added to a solid unknown salt, a colorless gas evolves that turns paper moistened with acidified potassium dichromate from orange to green. What is the anion?
Carbonate anion (CO32−) producing CO2
Sulfite anion (SO32−) producing sulfur dioxide gas (SO2)
Thiosulfate anion producing SO2 and yellow sulfur precipitate
Sulfide anion (S2−) producing H2S
3.
STEM Analytical Chemistry Problem 27: When dilute hydrochloric acid (HCl) is added to a solid unknown salt, a colorless gas evolves that turns paper moistened with acidified potassium dichromate from orange to green. What is the anion?
Sulfite anion (SO32−) producing sulfur dioxide gas (SO2)
Sulfide anion (S2−) producing H2S
Carbonate anion (CO32−) producing CO2
Thiosulfate anion producing SO2 and yellow sulfur precipitate
4.
STEM Analytical Chemistry Problem 41: When dilute hydrochloric acid (HCl) is added to a solid unknown salt, a colorless gas evolves that turns paper moistened with acidified potassium dichromate from orange to green. What is the anion?
Sulfide anion (S2−) producing H2S
Thiosulfate anion producing SO2 and yellow sulfur precipitate
Sulfite anion (SO32−) producing sulfur dioxide gas (SO2)
Carbonate anion (CO32−) producing CO2
5.
STEM Analytical Chemistry Problem 8: When dilute hydrochloric acid (HCl) is added to a solid unknown salt, a colorless gas evolves that turns paper moistened with acidified potassium dichromate from orange to green. What is the anion?
Sulfide anion (S2−) producing H2S
Carbonate anion (CO32−) producing CO2
Sulfite anion (SO32−) producing sulfur dioxide gas (SO2)
Thiosulfate anion producing SO2 and yellow sulfur precipitate
6.
STEM Analytical Chemistry Problem 16: When dilute hydrochloric acid (HCl) is added to a solid unknown salt, a colorless gas evolves that turns paper moistened with acidified potassium dichromate from orange to green. What is the anion?
Sulfide anion (S2−) producing H2S
Carbonate anion (CO32−) producing CO2
Sulfite anion (SO32−) producing sulfur dioxide gas (SO2)
Thiosulfate anion producing SO2 and yellow sulfur precipitate
7.
STEM Analytical Chemistry Problem 36: When dilute hydrochloric acid (HCl) is added to a solid unknown salt, a colorless gas evolves that turns paper moistened with acidified potassium dichromate from orange to green. What is the anion?
Thiosulfate anion producing SO2 and yellow sulfur precipitate
Sulfite anion (SO32−) producing sulfur dioxide gas (SO2)
Carbonate anion (CO32−) producing CO2
Sulfide anion (S2−) producing H2S
8.
STEM Analytical Chemistry Problem 4: When dilute hydrochloric acid (HCl) is added to a solid unknown salt, a colorless gas evolves that turns paper moistened with acidified potassium dichromate from orange to green. What is the anion?
Sulfite anion (SO32−) producing sulfur dioxide gas (SO2)
Thiosulfate anion producing SO2 and yellow sulfur precipitate
Sulfide anion (S2−) producing H2S
Carbonate anion (CO32−) producing CO2
9.
STEM Analytical Chemistry Problem 38: When dilute hydrochloric acid (HCl) is added to a solid unknown salt, a colorless gas evolves that turns paper moistened with acidified potassium dichromate from orange to green. What is the anion?
Thiosulfate anion producing SO2 and yellow sulfur precipitate
Sulfite anion (SO32−) producing sulfur dioxide gas (SO2)
Carbonate anion (CO32−) producing CO2
Sulfide anion (S2−) producing H2S
10.
STEM Analytical Chemistry Problem 18: When dilute hydrochloric acid (HCl) is added to a solid unknown salt, a colorless gas evolves that turns paper moistened with acidified potassium dichromate from orange to green. What is the anion?
Carbonate anion (CO32−) producing CO2
Sulfide anion (S2−) producing H2S
Thiosulfate anion producing SO2 and yellow sulfur precipitate
Sulfite anion (SO32−) producing sulfur dioxide gas (SO2)
11.
STEM Analytical Chemistry Problem 19: When dilute hydrochloric acid (HCl) is added to a solid unknown salt, a colorless gas evolves that turns paper moistened with acidified potassium dichromate from orange to green. What is the anion?
Carbonate anion (CO32−) producing CO2
Sulfite anion (SO32−) producing sulfur dioxide gas (SO2)
Thiosulfate anion producing SO2 and yellow sulfur precipitate
Sulfide anion (S2−) producing H2S
12.
STEM Analytical Chemistry Problem 29: When dilute hydrochloric acid (HCl) is added to a solid unknown salt, a colorless gas evolves that turns paper moistened with acidified potassium dichromate from orange to green. What is the anion?
Sulfite anion (SO32−) producing sulfur dioxide gas (SO2)
Carbonate anion (CO32−) producing CO2
Sulfide anion (S2−) producing H2S
Thiosulfate anion producing SO2 and yellow sulfur precipitate
13.
STEM Analytical Chemistry Problem 32: When dilute hydrochloric acid (HCl) is added to a solid unknown salt, a colorless gas evolves that turns paper moistened with acidified potassium dichromate from orange to green. What is the anion?
Sulfide anion (S2−) producing H2S
Carbonate anion (CO32−) producing CO2
Sulfite anion (SO32−) producing sulfur dioxide gas (SO2)
Thiosulfate anion producing SO2 and yellow sulfur precipitate
14.
STEM Analytical Chemistry Problem 39: When dilute hydrochloric acid (HCl) is added to a solid unknown salt, a colorless gas evolves that turns paper moistened with acidified potassium dichromate from orange to green. What is the anion?
Carbonate anion (CO32−) producing CO2
Sulfide anion (S2−) producing H2S
Thiosulfate anion producing SO2 and yellow sulfur precipitate
Sulfite anion (SO32−) producing sulfur dioxide gas (SO2)
15.
STEM Analytical Chemistry Problem 1: When dilute hydrochloric acid (HCl) is added to a solid unknown salt, a colorless gas evolves that turns paper moistened with acidified potassium dichromate from orange to green. What is the anion?
Carbonate anion (CO32−) producing CO2
Thiosulfate anion producing SO2 and yellow sulfur precipitate
Sulfide anion (S2−) producing H2S
Sulfite anion (SO32−) producing sulfur dioxide gas (SO2)
16.
STEM Analytical Chemistry Problem 26: When dilute hydrochloric acid (HCl) is added to a solid unknown salt, a colorless gas evolves that turns paper moistened with acidified potassium dichromate from orange to green. What is the anion?
Carbonate anion (CO32−) producing CO2
Thiosulfate anion producing SO2 and yellow sulfur precipitate
Sulfite anion (SO32−) producing sulfur dioxide gas (SO2)
Sulfide anion (S2−) producing H2S
17.
STEM Analytical Chemistry Problem 28: When dilute hydrochloric acid (HCl) is added to a solid unknown salt, a colorless gas evolves that turns paper moistened with acidified potassium dichromate from orange to green. What is the anion?
Sulfite anion (SO32−) producing sulfur dioxide gas (SO2)
Sulfide anion (S2−) producing H2S
Thiosulfate anion producing SO2 and yellow sulfur precipitate
Carbonate anion (CO32−) producing CO2
18.
STEM Analytical Chemistry Problem 3: When dilute hydrochloric acid (HCl) is added to a solid unknown salt, a colorless gas evolves that turns paper moistened with acidified potassium dichromate from orange to green. What is the anion?
Sulfite anion (SO32−) producing sulfur dioxide gas (SO2)
Carbonate anion (CO32−) producing CO2
Sulfide anion (S2−) producing H2S
Thiosulfate anion producing SO2 and yellow sulfur precipitate
19.
STEM Analytical Chemistry Problem 13: When dilute hydrochloric acid (HCl) is added to a solid unknown salt, a colorless gas evolves that turns paper moistened with acidified potassium dichromate from orange to green. What is the anion?
Sulfide anion (S2−) producing H2S
Thiosulfate anion producing SO2 and yellow sulfur precipitate
Carbonate anion (CO32−) producing CO2
Sulfite anion (SO32−) producing sulfur dioxide gas (SO2)
20.
STEM Analytical Chemistry Problem 30: When dilute hydrochloric acid (HCl) is added to a solid unknown salt, a colorless gas evolves that turns paper moistened with acidified potassium dichromate from orange to green. What is the anion?
Carbonate anion (CO32−) producing CO2
Sulfite anion (SO32−) producing sulfur dioxide gas (SO2)
Thiosulfate anion producing SO2 and yellow sulfur precipitate
Sulfide anion (S2−) producing H2S
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