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AP Chemistry Ion/Flame Colors
Practice Test


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IA. Ion Colors in Solution (ion --> color)

1. Iron (III)
2. Permanganate
3. Nickel (II)
4. Cobalt (II)
5. Chromate
6. Dichromate
7. Copper (II)
8. Manganese (II)
9. Iron (II)


now in a different order...

1. Iron (II)
2. Manganese (II)
3. Copper (II)
4. Chromate
5. Iron (III)
6. Permanganate
7. Cobalt (II)
8. Nickel (II)
9. Dichromate



IB. Ion Colors in Solution (color --> ion)

1. light green
2. blue
3. orange
4. deep violet
5. yellow/brown
6. yellow
7. light pink
8. light red


now in a different order...

1. blue
2. deep violet
3. yellow
4. light red
5. light green
6. light pink
7. orange
8. yellow/brown



II. Flame Tests (element --> color)

1. Boron
2. Barium
3. Calcium
4. Cesium
5. Copper (I)
6. Copper (II)(non-halide)
7. Copper (II)(halide)
8. Iron
9. Potassium
10. Lithium
11. Manganese (II)
12. Sodium
13. Lead
14. Rubidium
15. Strontium
16. Zinc








Answers:

IA.

1. yellow/brown
2. deep violet
3. light green
4. light red
5. yellow
6. orange
7. blue
8. light pink
9. light green


IA. (rearranged)

1. light green
2. light pink
3. blue
4. yellow
5. yellow/brown
6. deep violet
7. light red
8. light green
9. orange


IB.

1. Iron (II) or Nickel (II)
2. Copper (II)
3. Dichromate
4. Permanganate
5. Iron (III)
6. Chromate
7. Manganese (II)
8. Cobalt (II)


IB. (rearranged)

1. Copper (II)
2. Permanganate
3. Chromate
4. Cobalt (II)
5. Iron (II) or Nickel (II)
6. Manganese (II)
7. Dichromate
8. Iron (III)

II.

1. bright green
2. light green
3. red-orange
4. pale violet
5. blue
6. green
7. blue-green
8. gold
9. lilac
10. crimson
11. yellowish green
12. intense yellow
13. pale green
14. pale violet
15. crimson
16. bluish green