General Certificate of Education Ordinary Level
5070/31
CHEMISTRY
Paper 3 Practical Test
October/November 2010
CONFIDENTIAL INSTRUCTIONS
*4711088250*
Great care should be taken to ensure that any confidential information given does not reach the candidates either directly or indirectly.
The Supervisor’s attention is drawn to the form on page 7 which must be completed and returned with the scripts.
If you have any problems or queries regarding these instructions, please contact CIE by e-mail:
International@cie.org.uk
by phone:
+44 1223 553554 by fax:
+44 1223 553558 stating the Centre number, the nature of the query and the syllabus number quoted above.
This document consists of 8 printed pages.
DC (SJF5565) 14990/4
© UCLES 2010
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2
Safety
Supervisors are advised to remind candidates that all substances in the examination should be treated with caution. Only those tests described in the question paper should be attempted. Please also see under ‘Apparatus’ on the use of pipette fillers and safety goggles.
In accordance with COSHH (Control of Substances Hazardous to Health) Regulations, operative in the
UK, a hazard appraisal of the examination has been carried out.
Attention is drawn, in particular, to certain materials used in the examination. The following codes are used where relevant.
C = corrosive substance
F = highly flammable substance
H = harmful or irritating substance
O = oxidising substance
T = toxic substance
N = dangerous for the environment
The attention of Supervisors is drawn to any local regulations relating to safety and first-aid.
‘Hazard Data Sheets’, relating to materials used in this examination, should be available from your chemical supplier.
Preparing the Examination
1
Access to the question paper is NOT permitted in advance of the examination.
2
Preparation of materials
Where