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- 1. Multiple Choice
Metal A is more reactive than Metal B. The following displacement reaction takes place.
Metal A + Metal B in compound ---> Metal B + Metal A in compound.
True or False.
True
False
- 2. Multiple ChoiceAcid + Metal --> ?Salt + WaterSalt + HydrogenSaltHydrogen
- 3. Multiple ChoiceWhat is an ore?a solid metala rock cantaining a metal combined with other elementsan elementan object used to row a boat
- 4. Multiple Choice
Which of these elements is unlikely to be found in the ground in its pure form?
gold
platinum
aluminium
silver
- 5. Multiple ChoiceWhat is the removal of oxygen from a substance called?reductionextractionelectrolysisoxidation
- 6. Multiple ChoiceWhat is the addition of oxygen to a substance called?decompositionreductionoxidationextraction
- 7. Multiple ChoiceWhich element cannot be extracted from its ore by reduction with carbon?ironaluminiumcopperlead
- 8. Multiple Choice
What gas is always produced when a metal reacts with water?
Oxygen
Carbon Dioxide
Hydrogen
Carbon Monoxide
- 9. Multiple Choice
Magnesium chloride + Sodium → ?
Sodium chloride + Magnesium
Magnesium chloride + Sodium (No change)
Sodium magnesium + Chlorine
Magnesium sodium chloride
- 10. Multiple Choice
Which of the following does not react with water?
Lithium
Magnesium
Lead
Calcium
- 11. Multiple Choice
Which one of the following metals reacts most vigorously with cold water?
Sodium
Magnesium
Copper
Zinc
- 12. Multiple Choice
What element rusts?
Carbon
Iron
Manganese
Potassium
- 13. Multiple Choice
What two things cause Iron to rust ?
Water and Oxygen
Air and HCl
Carbon Monoxide and Air
Water and Carbon Dioxide
- 14. Multiple Choice
What prevents rusting?
Painting
Washing
Dusting
Sanding
- 15. Multiple Choice
Which of the followings is NOT a protection method of rusting?
Galvanizing
Painting
Covering in plastic
Heating with carbon
- Answer choicesTagsAnswer choicesTags