SolutionAll minerals are ores, but not all minerals are ores because some of them may contain significant amounts of undesirable materials like sand, stones, and earthly impurities. For instance: Clay and bauxite, two minerals that contain aluminium, are found in the crust of the earth. Only bauxite can be used to efficiently and profitably extract …
“All ores are minerals but all minerals are not ores ” why ? Read More »
Gangue is generally an unwanted material or impurity that is present in an ore. or , Gangue- the impurities present in ore such as sand rock etc is known as gangue. Common silicate, oxide, carbonate, and sulphate minerals that lack sufficient concentrations of valuable metals make up gangue minerals.
Answer Ore “ Ore is a mineral from which metal can be extracted profitably and conveniently.On the basis of profitability, without economic loss, conveniency minerals are chosen as an ore. ”. Metals are isolated from their ores and this process is known as metallurgy. Example – Haematite is an ore of iron and its composition …
Anode mud The insoluble impurities settle down at the bottom of the anode in purification of metals are known as anode mud.
An alloy is a homogeneous mixture of two or more metals, or a metal and a nonmetal. It is prepared by first melting the primary metal, and then, dissolving the other elements in it in definite proportions. It is then cooled to room temperature. For example, brass, an alloy of copper and zinc (Cu and Zn), and bronze, an …
Roasting Heating ore upto red hot below its Melting point. Removing volatile impurities. Formation of metla oxide Calcination Heating ore upto red hot below its Melting point. Removing volatile impurities. Formation of metla oxide
The wonder of ancient Indian metallurgyThe iron pillar near the Qutub Minar in Delhi was built more than 1600 years ago by the iron workers of India. They had developed a process which prevented iron from rusting. For its quality of rust resistance it has been examined by scientists from all parts of the world. …
Pure gold, known as 24 carat gold, is very soft. It is, therefore, not suitable for making jewellery. It is alloyed with either silver or copper to make it hard. Generally, in India,22 carat gold is used for making ornaments. It means that 22 parts of pure gold is alloyed with 2 parts of either …
