Chemistry (pure) 2008 P1

I had the opportunity to see a soft copy of the pure chemistry paper 1 - MCQ - for the O'lvls 2008. Here's the answers:

1. D
2. A
3. A
4. C
5. C

6. D
7. B
8. A
9. D
10. B

11. C
12. A
13. C
14. A
15. C

16. C
17. D
18. D
19. A
20. B

21. A
22. B
23. D
24. C
25. D

26. A
27. A
28. B
29. B
30. D

31. C
32. B
33. B
34. B
35. D

36. B
37. D
38. A
39. B
40. B

Personally I feel this MCQ isn't that easy. It's O'lvl standard no doubt, but definitely harder than Physics. Hope that you get at least 30 out of 40 :)