20 chemistry questions

Common Entrance Chemistry – 20 Multiple choice questions
Answer all 20 questions and then press ‘Submit’
Your score and any corrections will then be shown
(Different questions each time the quiz is run)

1. What is the chemical formula for CHALK (calcium carbonate)?

2. Fom the list of properties below pick the one which describes a non-metallic element:

3. Name the PROCESS you would use to obtain a sample of SOLID SALT from some sea water

4. This diagram shows the water cyclewater cycle3 

Which numbers represent where evaporation and condensation take place?
 

 

5. Is carbon dioxide a solid, liquid or gas?
(at normal room temperature)

6. Some plastic is bio readable.

What does biodegradable mean?

7. Pick an element from the list shown

8. Pick a chemical that reacts with water

9. What gas is produced when acids react with a metal?

10. Complete the word equation:
Hydrochloric acid + sodium hydroxide →     ?

11. What is the test for carbon dioxide gas?

12. C is the symbol for which chemical element

13. What compound would be formed when copper combines with sulphur?

14. What colour is magnesium oxide

15. Sam notices drops of water forming on the mirror when he was having a bath.

What name best describes these droplets?

16. What would be the product when water is added to anhydrous copper sulphate?

17. What colour would Universal Indcator turn when added to a neutral liquid?

18. What colour is sulphur?

19. The best way to remove sand from water is

20. Copper, iron, gold, and aluminium are all examples of what?