CE Chemistry-A Summary

Part 7 & 8-Industrial Products & Health 

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Health

• Definition of food additives.
• Distinguish different types of food additives and the use of them
• Common methods of preserving food.
• Disadvantages of food additives.
• Sides effects of drugs.
• Disadvantages of drug abuse.
• Harmful substances in Tobacco.(* Nicotine---cause addiction , Tar---turns the fingers and teeth brown )
• Effect of smoke in the lung.
  

Examination Format

This subject consists of two papers.

1. Structure Type Question (Paper I )
2. Multiple Choice Question (Paper II).

Paper I is further divided into section A(Short Questions) & section B (Long Questions).Time allowed for paper (I) are 1 hours while there is only 1 hour for Paper(II). You should know these before attending the examination:

• The 8 type of Hazard Warning Labels.
• Different methods of separating mixtures (especially filtration , evaporation & condensation and fractional distillation ).

Examination skills

• Chemistry's questions are often related to various topics, so you should study all the topics within the syllabus.
• The one of the two essay-type questions usually asks you to describe an experimental procedure. When you are doing this type of question, you should first understand what the question asks you. Then, think of what points do you have and present them systematically. This is useful to gain the 3marks of communication skill.
• You are advised not to use more than 15 minutes to finish one essay-type question.
• As the time is limited, you should do the paper in a great hurry. Secondly, you should have a plan of allocating how much time on each section of question before the examination.
• Moreover, you should do at least the past 5years' exam papers(especially MC questions). And you will find that although the questions are different, the technique and the concept behind are the same.
• As you are only required to answer 3 questions out of 4 in Paper ( I )(Section B),read through all the questions and choose those which you are familiar with .