Olyolyclass.com/library/science-g9-reactivity-series-en

Metals and the reactivity series

Grade 9 · Science · 16 questions

Back to the game

Tip: print on A4, cut the flashcards along the dashed lines. The answers are on the last page.

Print:

Worksheet: Metals and the reactivity series

Name:Class:

Answer the questions.

  1. Which of these metals is the most reactive?
    a) Copperb) Ironc) Magnesiumd) Potassium
  2. Which metal is the least reactive?
    a) Aluminiumb) Goldc) Sodiumd) Zinc
  3. Which list is in order from most reactive to least reactive?
    a) Copper, zinc, magnesium, sodiumb) Magnesium, copper, sodium, zincc) Sodium, magnesium, zinc, copperd) Zinc, sodium, copper, magnesium
  4. Which gas is made when magnesium reacts with dilute hydrochloric acid?
    a) Carbon dioxideb) Chlorinec) Hydrogend) Oxygen
  5. Which test shows hydrogen gas is present?
    a) A glowing splint relightsb) A lit splint makes a squeaky popc) Damp litmus paper turns whited) Limewater turns cloudy
  6. Copper reacts quickly with dilute hydrochloric acid to give hydrogen.
    a) Trueb) False
  7. Zinc is added to copper sulfate solution. What happens?
    a) Copper displaces zincb) Hydrogen gas is madec) Nothing happensd) Zinc displaces copper
  8. A more reactive metal can displace a less reactive metal from its compound.
    a) Trueb) False
  9. Will iron displace magnesium from magnesium sulfate solution? Yes or no?
  10. Which two things are needed for iron to rust?
    a) Hydrogen and saltb) Nitrogen and waterc) Oxygen and carbon dioxided) Oxygen and water
  11. Which method does NOT help to prevent iron from rusting?
    a) Coating it with oilb) Galvanising it with zincc) Leaving it in damp aird) Painting it
  12. Rusting is a chemical change that makes a new substance.
    a) Trueb) False
  13. Which metal at the very bottom of the reactivity series is often found uncombined?
  14. How is iron extracted from its ore in a blast furnace?
    a) Adding the ore to acidb) Cooling the ore with waterc) Heating the ore with carbon (coke)d) Mixing the ore with sodium chloride
  15. Why is aluminium not extracted by heating its ore with carbon?
  16. Which method is used to extract very reactive metals such as aluminium?
    a) Distillationb) Electrolysisc) Evaporationd) Filtration

Answers

  1. Potassium
  2. Gold
  3. Sodium, magnesium, zinc, copper
  4. Hydrogen
  5. A lit splint makes a squeaky pop
  6. False
  7. Zinc displaces copper
  8. True
  9. No, because iron is less reactive than magnesium
  10. Oxygen and water
  11. Leaving it in damp air
  12. True
  13. Gold
  14. Heating the ore with carbon (coke)
  15. It is more reactive than carbon (electrolysis is used)
  16. Electrolysis