Which of the following ores does not represent the ore of iron
The chief impurity present in red bauxite is
Upon heating with Cu2S, the reagent(s) that given copper metal is/are
Sapphire is mineral of
The highest quantity present in the atmosphere is of
Siderite is an ore of
Thermite process is used in the reduction of
Hydrometallurgy is based on
Gravity separation process is used for the concentration of
In electrorefining of copper, some gold is deposited as
Which of the following is an oxide ore?
Blister copper is
Aluminium metal is refined by
On igniting Fe2O3 at 1400degree C, the product obtained is
The extraction of which of the following metals involves bessemerisation?
Which one of the following is the chief ore of copper?
Which ore contains both iron and copper?
Argentite is an ore of
Cyanide process is used for extraction of
In Mac Arthur Forrest method, silver is extracted from the solution of Na [Ag(CN)2 ] by the use of
Which one of the following ores is an ore of copper?
Which one of the following metals is extracted by a carbon reduction process?
In metallurgical process, for which metal carbon is used for reduction of metal oxides?
The temperature of the slag zone in the metallurgy of iron using blast furnace is
Sulphide ores are common for metals
Which one of the following ores is best concentrated by froth floatation method?
Which one of the following metals, is extracted on smelting of its ore in blast furnace?
A similarly between optical and geometrical Isomerism is that:
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