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Questions Related to study of kerala
Pyrolusite is:
Magnesium oxide is used for the lining in steel making furnace because:
During the formation of the slag by the reaction of flux and impurities which of the following is an example of acidic and basic flux?
(i) $FeO + SiO _2\rightarrow FeSiO _3$
(ii) $SiO _2+MgO\rightarrow MgO\rightarrow MgSiO _3$
A number of elements are available in earth's crust but most abundant elements are _______.
Impurities of sulphur, silicon, and phosphorus can be removed from cast iron by adding:
Sulphur molecule exists as :
In the extraction of some metals from their ores, coke can be used as:
If an ore contains impurity of $SiO _2$, identify the appropriate flux for the removal of it:
Electrolytic reduction method is used for extraction?
In metallurgy, reduction is one of the major steps. However, all ores may not require an extra reducing agent, one such metallurgical operation is the extraction of?