Which iron ore is available in India at Chennai, but it is not use of , as coal fields are not located nearby

Which iron ore is known as sulphide of Iron

Heating ores in presence of air is known as

Bessemer pig is obtained from

In wrought iron , the percentage of carbon content does not exceed

The operation of removing slag contained in puddle ball, in the manufacture of wrought iron is known as

Laterite is an example of

The rocks formed by the solidification of molten material either inside or on surface of the earth is called

The stone containing alumina or clay as their major constituent is known as

Mortar in which both lime and cement are used as binding material is called