General Principles and Processes of Isolation of Elements
Which of the following metal oxide(s) gives metal and oxygen on heating ?
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The major step involved in extraction of a metal after its ore is :
In which of the following isolations no reducing agent is required?
The conversion of aluminium hydroxide to pure alumina is carried out by:
Assertion :Sulphide ores are converted to oxides before reduction. Reason :Oxides are easier to reduce.
Mercury has low boiling point. Therefore it can be purified by the process of:
Which of the following is a physical mean for concentration of ore?
When FeCr2O4 (chromite) is reduced with Carbon in an electric-arc furnace:
How are lanthanides extracted from monazite sand?