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Periodic Classification of Elements — Science STD 10 — Question

Tamilnadu BoardEnglish MediumSTD 10SciencePeriodic Classification of Elements1 Mark
Question
Differentiate ore and mineral.
✓

Answer

Ore Mineral
1. Ores contain a large percentage of metal. 1. Minerals contain a low percentage of metal.
2. Ores can be used for die extraction of metals on a large scale readily and economically. 2. Metals cannot be extracted easily from minerals.
3. Bauxite $Al _2 O _3 \cdot 2 H _2 O$ is the ore of aluminium. 3. Clay $Al _2 O _3 .2 SiO .2 H _2 O$ is the mineral of aluminium.

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