MetallurgyHard
Question
Poling process :
Options
A.reduces SnO2 to Sn
B.oxidises impurities like iron and removes as scum
C.uses green poles
D.all of the above are correct
Solution
This method is used for the purification of those impure metals which contain the impurities of their own impurities for example CuO in Cu and SnO in Sn.
Create a free account to view solution
View Solution FreeMore Metallurgy Questions
Which of the following reaction shows calcination process :-...Collectors are the substances which help in attachment of an ore particle to air bubble in froth. A popular collector us...A piece of steel is heated until redness and then plugged into cold water or oil. This treatment of steel makes it...Railway wagon axles are made by heating iron rods embedded in charcoal powder. This process is known as:...Of the following reduction processes, the correct process(es) is/are :...