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प्रश्न
What is the difference between a mineral and an ore?
उत्तर
The differences between a mineral and an ore are listed below:
| Mineral | Ore |
| 1. Naturally occurring metals or their compounds are called minerals. | Minerals containing good quantity of metals that can be profitably mined are called ores. |
| 2. Minerals may or may not contain metals in large percentages. | Ores always contain metals in large percentages. |
| 3. Minerals may or may nor contain objectionable impurities. | Ores do not contain objectionable impurities. |
| 4. All minerals are not ores. | All ores are minerals. |
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संबंधित प्रश्न
Name the following:
The property possessed by metals by which they can be beaten into sheets.
Aluminum is used in thermite welding:
what is ignition mixture?
Name the following:
The mixture of materials fed into a furnace to extract a metal.
What is meant by concentration of ores?
Complete the incomplete statement with missing words:
Metals are ______ while non-metals are ______ conductors of heat.
Name a non- metal that has a metallic luster and sublimes on heating.
Which one of the following is not true of metal :
Metals form non-polar covalent compounds
Answer the following question:
Carbon cannot reduce the oxides of sodium, magnesium, and aluminum to their respective metals. Why? Where are these metals placed in the reactivity series? How are these metals obtained from their ores? Take an example to explain the process of extraction along with chemical equations.
Oxides of moderately reactive metals like Zinc, Iron, Nickel, Tin, Copper, etc. are reduced by using:
In thermite welding a mixture of ____________ is ignited with a burning magnesium ribbon which produces molten iron metal as a large amount of heat is evolved.
