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How can aluminum be identified visually in a group of workpieces made of aluminium, brass, copper and mild steel?

How can aluminum be identified visually in a group of workpieces made of aluminium, brass, copper and mild steel? Correct Answer Observing silvery appearance

Explanation:

  • Aluminium is found in the form of aluminium oxide in an ore called bauxite. Alumina and bauxite are the two main raw materials in the aluminium making process.
  • It is silvery-white in appearance, and the melting point is 660°C. It is soft and highly corrosion-resistant.
  • Use of aluminium:
    • In infrastructure
    • In consumer goods
    • In transportation
    • In aircraft structure

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Copper: Reddish in color

Brass: The color is yellow or light yellow, or nearly white.

Bronze: Its color ranges from red to yellow

Lead: Silver in colour when in a molten state

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