(i) Difference between Mineral and Ore
| Mineral |
Ore |
| 1. The natural material in which the metals or their compounds are found in earth are called minerals. |
1. Those minerals from which the metals can be extracted conveniently and profitably are called ores. |
| 2. Some minerals may contain only a small percentage of the metal and some may contain a large percentage of metals. |
2. An ore contains a good percentage of the metal. |
(ii) Difference between Corrosion and Rancidity
| Corrosion |
Rancidity |
1. The tarnishing of the metals by the attack of moisture and acids in the air is called corrosion.
2. Example: Rusting of iron. |
1. When fats and oils present in the food get oxidized, the smell and taste of the food changes. This is called Rancidity.
2. Example: Potato-chips kept in N, gas to check rancidity. |
(iii) Difference between Malleability and Ductility:
| Malleability |
Ductility |
1. The property which allows the metals to be hammered into thin sheets is called malleability.
2. Gold and silver metals are the best malleable metals |
1. The property which allows the metals to be drawn into thin wires is called ductility.
2 Gold is the most ductile metal. |
