1. AL CHEM REVIEW

2. [Inorganic Chemistry]
AL CHEM Written Practical
[Inorganic Chemistry]
~ Preparation of Gases ~
dry Cl2
drying
agent used ??
How to collect??
(upward/downward delivery?)
dry HCl
dry NH3
dry SO2
p.1

3. p.2

4. p.3

5. p.4

6. p.5

7. p.6

8. 1994 P.II Q.4 (a)
Describe how a sample of dry chlorine is prepared in the laboratory. State the safety precaution(s) that is / are required.
(5M)
p.7

9. p.8

10. 1996 P.II Q.5 (c) (i), (ii)
(i) Write a balanced equation for the reaction of concentrated sulphuric (VI) acid on potassium chloride.
(ii) Briefly describe how a sample of dry hydrogen chloride can be prepared in the laboratory, using the above reaction.
Draw a labelled diagram of the laboratory set-up and state the safety precaution(s) that is / are required.
(7M)
p.9

11. 1996 P.II Q.5
p.10

12. 1997 P.I Q.7
(a) Briefly describe how a sample of dry chlorine gas can be prepared in the laboratory.
Draw a labelled diagram of the laboratory set-up and state the safety precaution(s) that is / are required.
(6M)
p.11

13. 1997 P.I Q.7
p.12

14. p.13

15. 2001 P.I Q.7
(a) Suggest how you would prepare a sample of dry hydrogen chloride gas in a school laboratory.
Draw a labelled diagram of the set-up of apparatus used in the preparation.
(4M)
p.14

16. 2001 P.I Q.7
p.15

17. 2002 P.I Q.7
(b) Devise an experiment, using chemicals and apparatus commonly available in a school laboratory, to show that the reaction of peroxodisulphate (VI) ions with iodide ions can be catalyzed by iron (III) ions.
S2O82-(aq) + 2I-(aq)  2SO42-(aq) + I2(aq)
(5M)
p.16

18. 2002 P.I Q.7
p.17