1. State the colour of phenolphthalein in acidic and alkaline solutions

Question 1 of 14

2. Which are described as basic: metal oxides or non-metal oxides?

Question 2 of 14

3. What is the universal indicator colour of a pH 7 (neutral) solution?

Question 3 of 14

4. A gas is bubbled through limewater and the limewater goes cloudy. Identify the gas.

Question 4 of 14

5. State the formula for the iron (III) ion

Question 5 of 14

6. Give the name of the substance which has formula HNO₃

Question 6 of 14

7. What is an acid?

Question 7 of 14

8. What happens when a small amount of hydrogen is burnt in a test tube?

Question 8 of 14

9. Can a base neutralise an acid?

Question 9 of 14

10. Balance the following equation: WO₃ + H₂ → W + H₂O

Question 10 of 14

11. What is an alkali compared to a base?

Question 11 of 14

12. How can metal carbonates be used to produce carbon dioxide?

Question 12 of 14

13. With universal indicator, what is the pH of a green solution?

Question 13 of 14

14. What is the formula for ammonium sulfide?

Question 14 of 14