This quiz pulls questions at random from the entire Double-only question-bank

1. In aluminium extraction, what is the ionic half-equation for the reaction at the negative electrode?

Question 1 of 10

2. State the meaning of the term redox

Question 2 of 10

3. What will happen to the yield of C when the temperature is increased? Give a reason for your prediction. A (g) + B (g) ⇋ C (g) (+∆H)

Question 3 of 10

4. In the dot and cross diagram of the outer electrons showing the covalent bonding in a molecule of chlorine (Cl₂), how many electrons should be shown in areas 1, 2 and 3?

Question 4 of 10

5. What is the test for iron (II) ions (Fe²⁺) and what is the result?

Question 5 of 10

6. Which two substances are added when testing for the sulfate (SO₄²⁻) ions? (2)

Question 6 of 10

7. What is the name of this molecule?

Question 7 of 10

8. In terms of electrons, what is oxidation?

Question 8 of 10

9. What are the two main methods of extracting metals?

Question 9 of 10

10. How does sulfur dioxide form in car engines?

Question 10 of 10