QUIZ FINAL SEM 2 F2

Which of the following is a chemical change?

• A. Boiling of water

• B. Melting of ice

• C. Dissolving salt in water

• D. Burning of magnesium in air

Figure 1 shows an experiment to investigate heat change in sulphuric acid and magnesium. What type of reaction is involved?

• A. Neutralisation

• B. A physical change

• C. An exothermic reaction

• D. An Endothermic reaction

What is the systematic name for galena?

• A. Aluminium oxide

• B. Iron (III) oxide

• C. Lead (II) oxide

• D. Lead (II) sulphide

Which of the following are natural forms of calcium carbonate?

• A. Limestone

• B. Concrete

• C. Copper

• D. Gold

Diagram 1 shows a blast furnace used to extract iron. Which of the parts labelled P, Q, R or S represents the exit point for slag?

• A. P

• B. Q

• C. R

• D. S

Which of the following elements form bauxite?

• A. I and II

• B. II and III

• C. III and IV

• D. I and IV

What non-metal elements that are listed in the reactivity series of metals?

• A. Oxygen and carbon

• B. Carbon and nitrogen

• C. Hydrogen and oxygen

• D. Carbon and hydrogen

Which metal can be extracted from hematite?

• A. Aluminium

• B. Iron

• C. Lead

• D. Tin

Which metal can be extracted from its ore by the reduction of its oxide with carbon?

• A. Gold

• B. Potassium

• C. Copper

• D. Zinc

Which factors does NOT affect the rate of a reaction?

• A. Temperature

• B. Catalyst

• C. Time

• D. Concentration