CBSE Class 10 Science 2015 Term I Set 1

Question : 9

Total: 36

Differentiate between the following with suitable examples :
(i) Mineral and ore
(ii) Corrosion and rancidity
(iii) Malleability and ductility

Solution:

(i) Difference between Mineral and Ore

S. No.	Mineral	Ore
1	Naturally occuring substances of metals present in the earth's crust are called minerals.	Minerals which can be used to obtain the metal profitably are called ores.
2.	All minerals are not ores.	All ores are essentially minerals.

(ii) Difference between Corrosion and RancidityCorrosion

S. No.	Corrosion	Rancidity
1	The tarnishing of the metals by the attack of moisture and acids in the air is called corrosion.	When fats and oils present in the food gets oxidized, the smell and taste of the food changes. This is called Rancidity.

(iii) Difference between Malleability and Ductility

S. No.	Malleability	Ductility
1	The property which allows the metals to be hammered into thin sheets is called malleability.	The property which allows the metals to be drawn into thin wires is called ductility.

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