STPM Chemistry 2011 – Tips and Predictions for Papers 962/4
Examination Tips for STPM Chemistry 2011 Paper 962/4 Written Practical Test Paper 4
Taken from Peperiksaan STPM (Malaysia Higher School Certificate) Chemistry Syllabus, Majlis Peperiksaan Malaysia (Malaysian Examination Council)
Who are required to take this STPM Chemistry Paper 4 Written Practical Test
- Individual private candidates,
- Candidates from private schools which have no permission to carry out the school-based assessment of practical work,
- Candidates who repeat upper six (in government or private schools), and
- Candidates who do not attend classes of lower six and upper six for two consecutive years (in government or private schools) are required to take this paper.
The written practical test will be made of three structured questions to test the candidates’ understanding of practical procedures in the laboratory. The Malaysian Examinations Council will not be strictly bound by the syllabus in setting questions. When appropriate, candidates will be given sufficient information to enable them to answer the questions. Only knowledge of theory within the syllabus and knowledge of usual laboratory practical procedures will be expected.
Question to be set will test candidates’ ability to
- Record readings from diagrams of apparatus,
- Describe, explain, comment on or suggest experimental arrangements, techniques and procedures,
- Complete tables of data and/or plot graphs,
- Interpret, draw conclusions from, and evaluate observations and experimental (including graphical) data,
- Describe tests for gases, icons, oxidising and reducing agents, and/or make decisions form such tests,
- Perform simple calculations based on experiments.
Questions to be set in the written practical test will test candidates’ knowledge and understanding in three aspects as follows.
A. Volumetric Analysis
Candidates should understand experiments involving the procedures and calculations of volumetric analysis for acid-base and redox titrations. Candidates should also know the calculations for purity determination and stoichiometry.
B. Determination of Physical Quantities
Candidates should understand experiments involving the measurements of some quantities in the following topics, thermochemistry, reaction kinetics, equilibrium, solubility and electrochemistry.
Candidates should know the following techniques: qualitative analysis and functional groups, synthesis and separation processes.
Although systematic analysis and knowledge of traditional methods of separations will not be required, it will be assumed that candidates will be familiar with the simple reactions of the following ions: NH4+, Mg2+, Al3+, Ca2+, Cr3+, Mn2+, Fe2+, Fe3+, Ni2+, Cu2+, Zn2+, Ba2+, Pb2+, CO32-, NO3-, NO2-, S2-, SO42-, SO32-, S2O32-, Cl-, Br-, I-, MnO4-, CH3CO2-, C2O42-.
Knowledge of simple organic reactions, e.g. test-tube reactions indicating the presence of unsaturation and functional groups will be required.
The substances to be asked in questions may contain ions not included in the above list; in such cases, candidates will not be expected to identify the ions but to draw conclusions of a general nature.
It is consisting 10% of the Chemistry paper. Three compulsory structured questions are to be answered. Marks will not be deducted for wrong answers.
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