Reactivity Series Quiz
Studying this course? Keep your progress in one place.
Pick an answer for each. Quizzes never use energy.
5 questions, one answer each
Each answer is checked as you go, with why.
See all 5 questions
1. Which metal is the least reactive in the standard reactivity series studied?
- A. Copper
- B. Silver
- C. Gold
- D. Iron
2. What two substances must be present for iron to rust?
- A. Heat and oxygen
- B. Water and oxygen
- C. Water and carbon dioxide
- D. Oxygen and salt only
3. In the reaction Mg + 2HCl → MgCl2 + H2, what happens to magnesium?
- A. It is reduced by losing electrons
- B. It is oxidised by losing electrons
- C. It is oxidised by gaining electrons
- D. It is reduced by gaining oxygen
4. Zinc powder is added to a blue copper sulfate solution and a colourless solid coating forms with the solution turning colourless. What does this show?
- A. Zinc is less reactive than copper
- B. Zinc is more reactive than copper and displaces it
- C. No reaction has taken place
- D. Copper is more reactive than zinc
5. A block of magnesium is bolted onto a ship's iron hull below the waterline. What is this an example of, and why does it work?
- A. Galvanising, because zinc protects the iron as a barrier
- B. Sacrificial protection, because magnesium is more reactive than iron and corrodes instead
- C. A barrier method, because magnesium physically blocks water
- D. Electrolysis, because magnesium conducts electricity to the hull