Chapter 9: Manufactured Substance in Industry
A. Knowledge (Definition, meaning and facts) | Check |
- What is the meaning of alloy?
State the aims of making alloys.
What is the meaning of composite materials?
State the components of the following composite materials:
- Reinforced concrete,
- Superconductor,
- Fibre optic,
- Fibre glass,
- Photochromic glass.
State the catalyst, temperature and pressure of the following process:
- (a) Contact process
- (b) Haber process
- What is the meaning of polymers?
Name the monomer of polythene and polyvinyl chloride.
- State four types of glass and their compositions. List the uses of each glass.
- What is ceramics? State the properties and list the uses of ceramics.
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B. Understanding / Application / Analysis |
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- Bronze is an alloy consists of copper and tin. Explain why bronze is harder than copper.
- Explain how acid rain is formed.
Describe how acid rain causes environmental pollution.
- Explain the industrial process involved in the manufacture of sulphuric acid.
Write all the chemical equations involve.
- Explain the industrial process involved in the manufacture of ammonia gas.
Write all the chemical equations involve.
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C. Synthesis |
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- Describe a laboratory experiment to prepare ammonium sulphate (ammonium fertiliser)
- Describe a laboratory experiment to compare the hardness of brass and copper.
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