Carib Quiz - Chemistry
1. Question

All of the following are non-metals EXCEPT for:

2. Question

The two common varieties of chlorine atoms are called:

3. Question

In electrolysing a solution of copper sulphate using copper electrodes, the anode:

4. Question

The alloy, brass, contains copper and:

5. Question

Powders react faster than lumps because they have:

6. Question

If a flask containing marble and acid is placed on a balance, the mass decreases steadily with time, which means that:

7. Question

A ballpoint pen mark can be removed using:

8. Question

At 20 ℃ all of the halogens are:

9. Question

Biological catalysts in yeast are called:

10. Question

All of these are alkenes EXCEPT for:

11. Question

The group of elements whose molecules and atoms are the same is called:

12. Question

In the reactivity series of metals the order is: sodium, calcium, magnesium, aluminium, which means that the most reactive metal is:

13. Question

The metal used in food containers whose surface is protected by a strong oxide layer is:

14. Question

The voltages from the electrochemical series are -2.92 for potassium and +0.34 for copper, which shows that:

15. Question

An insoluble metal oxide can be described as:

16. Question

The main metal in tin cans used to preserve food is:

17. Question

One example of an emulsifying agent is:

18. Question

A flame test colour of red could indicate the presence of a compound of:

19. Question

The common name for silicon dioxide is:

20. Question

Quantity of electricity in coulombs = current in amps multiplied by:

21. Question

Different structures based on the same molecular formula are called:

22. Question

When metals react with acids they give a salt and:

23. Question

The non-metal used to make margarine is:

24. Question

The alkane compound with seven carbon atoms is:

25. Question

The number of carbon atoms in the alcohol, pentanol, is:

26. Question

In electrolysis the anode is the:

27. Question

The catalyst in the Haber Process is:

28. Question

You never find native magnesium because:

29. Question

The number of double bonds in a molecule of carbon dioxide is:

30. Question

If the relative atomic mass (RAM) = 1 for hydrogen and 16 for oxygen, the formula mass for H2O2 is:

31. Question

The monomer used to make poly (propene) is called:

32. Question

The following are all natural materials EXCEPT for:

33. Question

Which one of the following gases is considerably heavier than air?

34. Question

The only one of the following which is NOT a change of state is:

35. Question

The halogen used to make bleach is called:

36. Question

The number of atoms in a diatomic molecule is:

37. Question

When potassium burns in chlorine, the material that is oxidised is called:

38. Question

In a water condenser the cooling water enters at:

39. Question

The proportions of elements in a pure compound are always:

40. Question

The pH scale runs from 1 to:

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Chemistry Unit 1