Tag: basics of metallurgy
Questions Related to basics of metallurgy
Which of the following metal oxide(s) gives metal and oxygen on heating ?
Selection of temperature to carry out a reduction process depends so as to make:
Auto reduction process is used for the extraction of:
In which of the following isolations is no reducing agent required?
The extraction of metals from oxide ores involve(s) :
$H _2$ is not widely used as the reducing agent in metallurgic process because :
Lead obtained from galena ore (PbS) by air reduction or carbon reduction process contains base metal (Cu, Bi, As, Sn, Zn) as impurities. Gelatin acts as an addition agent in the electrolysis of Pb. In the presence of gelatin, Pb becomes :
Which of the following metal oxides are reduced by self reduction method?
Pb is a very important element of carbon family. It forms a number of compounds which are very useful in industries. The process of removal of base metals (Cu, Sn, Bi, As) from lead is called:
Aquaregia is ___ part conc. HCI and ___ part conc. $HNO _3$.