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Metallurgy — Chemistry STD 12 — Question

Tamilnadu BoardEnglish MediumSTD 12ChemistryMetallurgy2 Marks
Question
What are the differences between minerals and ores?
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Answer

Minerals:

  1. Minerals contain a low percentage of metal.
  2. Metal cannot be extracted easily from minerals.
  3. Clay $Al _2 O _3 \cdot SiO _2 \cdot 2 H _2 O$ is the mineral of aluminium.

Ores:

  1. Ores contain a large percentage of metal.
  2. Ores can be used for the extraction of metals on a large scale readily and economically.
  3. Bauxite$Al _2 O _3 \cdot 2 H _2 O$ is the ore of aluminium.

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