General Principles and Processes of Isolation of Elements
The important step in the extraction of metal from carbonate ore is
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Fill in the blanks with the correct choice.The undesired impurities present in the ores are called ___(i)___. To remove the volatile impurities from the ore, the ___(ii)___ process is carried out. Flux combines with non-fusible impurities to form ___(iii)___. CaO acts as a ___(iv)___ flux.
Oxides of the various metals are converted into metal by heating but not in :
Which method do you suggest for extraction of high reactivity metals? Why?
The _________ process is used in the extraction of copper and lead.
Gravity separation method is used to concentrate which type of ores?
During electrolysis, electrons are being added directly to the metal ions at the ___________.
Which of the following ores is/are sulphide ore(s)?
The disadvantage of carbon reduction method are :