Common Entrance Chemistry – 10 Multiple choice questions
Answer all 10 questions and then press ‘Submit’
Your score and any corrections will then be shown
(Different questions each time the quiz is run)

1. Pick a liquid that is a mild alkali
2. Look at the graph below which shows the solubility of 3 substances in water at diferent temperatures
graph2Which substance does the temperature of the water have the least effect on the solubility?
3. What process would be best used to obtain pure water from sea water?
4. 15g of copper foil is heated in a sealed test tube until the copper stops changing colour.
After the experiment had cooled the tube was opened and then re-weighed.

These were his results:

Mass of tube + copper before heating = 75gMass of tube after heating = 75.3gApproximately what mass of oxygen was in the tube?

5. Wax is a compound of hydrogen and carbon (known as hydrocarbon).

What are the products of the reaction that takes place when wax burns completely in air.
6. Which of the following substances below can you use as a fuel?
7. Wax is a compound of hydrogen and carbon (known as hydrocarbon).

How many products would be formed when wax burns?
8. Word equations for 4 different reactions are shown.
Which of them is an example of a displacement reaction?
9. What is the test for carbon dioxide gas?
10. What is the approximate number of elements?