One of the following metals forms a volatile compound and this property is taken advantage for its extraction. This metal is
Mond’s process for refining of Ni is an example of vapour phase refining.
Which of the following metals cannot be extracted by carbon reduction process?
Which metal is extracted by electrolytic reduction method?
The luster of a metal is due to
Which of the following is not an ore?
Which of the following mineral does not contain Al?
Which of the following statement is incorrect?
Among the following statements, the incorrect one is
Load stone is one ore of
An ore of tin containing FeCrO4 is concentrated by
When a metal is to be extracted its ore, if the gangue associated with the ore is silica, then