Chemistry
(a) Give the chemical names and formula of main ores of
- aluminium
- iron
- zinc
(b) Write the principle metal(s) of the following alloys.
- Brass
- Stainless steel
Metallurgy
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Answer
(a) The chemical names and formula of main ores are given below:
| S. No. | Name | Chemical Name | Formula |
|---|---|---|---|
| 1. | Bauxite | Hydrated aluminium oxide | Al2O3.2H2O |
| 2. | Red haematite | Anhydrous ferric oxide | Fe2O3 |
| 3. | Zinc blende | Zinc sulphide | ZnS |
(b) The principle metal(s) of the given alloys are:
- Copper and Zinc.
- Iron and Chromium.
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