6 Written Questions

1. CrO4 -2
2. OH -1
3. SO3 -2
4. NO2 -1
5. Cr2O7 -2
6. MnO4 -1

6 Multiple Choice Questions

1. PO3 -3
   1. phosphite
   2. phosphate
   3. chlorite
   4. sulphite
2. SO4 -2
   1. chlorate
   2. sulphate
   3. sulphite
   4. phosphate
3. ClO3 -1
   1. chlorite
   2. chromate
   3. chlorate
   4. sulphate
4. O2 -2
   1. hydroxide
   2. chlorite
   3. peroxide
   4. chromate
5. CN -1
   1. cyanide
   2. nitrite
   3. peroxide
   4. chlorite
6. CO3 -2
   1. chromate
   2. carbonate
   3. chlorate
   4. dichromate

5 True/False Questions

1. ammonium → CO3 -2

   True        False

2. nitrate → NO3 -1

   True        False

3. phosphate → PO3 -3

   True        False

4. acetate → C2H3O2 -1
   CH3COO -1

   True        False

5. chlorite → ClO2 -1

   True        False