Explain the following terms:

i. Mineral:

ii. Ore:

iii. Metallurgy:

iv. Centrifugation:

v. Roasting:

vi. Calcination:

vii. Anodic mud:

viii Metallic corrosion:

ix. Alloy:

x. Galvanizing:

i. The inorganic compounds which are available naturally from the Earth’s crust.

ii. The advantageous extraction from a mineral due to presence of higher content of metal then the mineral is called ore.

iii. The process of separating metal from its ore and refining is called as metallurgy.

iv. Centrifugation is sedimentation of particles under the influence of the centrifugal force and it is used for separation this process is known as centrifugation.

v. The method of converting sulphide containing ore into metal oxide in presence of excess of air.

vi. The method of converting carbonate containing ore into metal oxide in absence of air.

vii. In the process of electrolysis, the insoluble impurities that get collected at the bottom of anode in the electrolyte that is called anode mud.

viii. The erosion reaction of any metal with water or moisture when it comes in its contact is called metallic erosion.

ix. Alloys are the homogeneous mixture of 2 or more metals or metal and non-metals.

x. Galvanizing is the process of applying protective zinc coating to iron, to prevent it from rusting.