Carib Quiz - Chemistry
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Chemistry
1. Question

To work out the heat change in a reaction we need to know just three things, the mass, the temperature change and the:

2. Question

To remove limescale from a tap you need:

3. Question

When aluminium is extracted by electrolysis, cryolite is added to:

4. Question

The number of electrons in a full electron shell is:

5. Question

The empirical formula, C6H12O6, gives the simplest ratio as:

6. Question

In the equation, carbon monoxide + oxygen → carbon dioxide, a reactant is:

7. Question

The number of litres in 2000 cm3 is:

8. Question

The active catalyst in a car′s catalytic converter is:

9. Question

All of these materials are used in a blast furnace EXCEPT for:

10. Question

A reaction that gives out heat is said to be:

11. Question

All of these are properties of carbon monoxide EXCEPT for:

12. Question

When two solutions are mixed and give a solid product we call it:

13. Question

When zinc metal is added to copper sulphate solution the products are copper and zinc sulphate solution, so the material that has been displaced must be:

14. Question

The type of polymerisation used to make polythene is called:

15. Question

The only common gas that turns moist red litmus paper blue is:

16. Question

The simplest ratio of atoms in a compound is given by the:

17. Question

The second most common gas in the atmosphere is:

18. Question

A salt that is anhydrous contains no:

19. Question

To complete the reaction: acid + carbonate → salt + carbon dioxide + ?, we must add the word:

20. Question

The sharp-tasting compound in vinegar is:

21. Question

The gas that relights a glowing splint is:

22. Question

At the cathode all of these can happen EXCEPT for:

23. Question

None of these solutions in water conducts electricity EXCEPT for:

24. Question

When an element combines with oxygen we get an:

25. Question

We can separate an insoluble solid from a liquid using:

26. Question

The energy used in thermal decomposition is:

27. Question

To make fertilisers and explosives we need:

28. Question

When gas particles spread out we call it:

29. Question

More collisions between particles are likely to happen if a solution is made:

30. Question

The Haber Process is used to make:

31. Question

Candied fruits are preserved in a strong solution of:

32. Question

All of these are carbohydrates EXCEPT for:

33. Question

All of these are compounds EXCEPT for:

34. Question

A molecule of ethene can be described as all of these EXCEPT for:

35. Question

All of the following have a charge of -1 EXCEPT for:

36. Question

A salt that contains water of crystallisation is:

37. Question

The rate of reaction between marble and hydrochloric acid can be speeded up by using:

38. Question

In making bread the enzymes in yeast break down starch to give:

39. Question

The halogen, bromine, at room temperature is a:

40. Question

The common name for ascorbic acid is:

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Chemistry Unit 1