Class 12ChemistryGeneral Principles and Processes of Isolation of ElementsMix Examples of General Principles and processes of Isolation of Elements
EasyWhat is the percentage of carbon in steel?
- A$2.5 - 4.5 \%$
- B$0.25 - 0.5 \%$
- C$0.2 - 1.5 \%$
- D$3 - 3.5 \%$
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Similar Questions
The correct statement$(s)$ related to the metal extraction processes is(are):
$(A)$ $A$ mixture of $PbS$ and $PbO$ undergoes self-reduction to produce $Pb$ and $SO_2$.
$(B)$ In the extraction process of copper from copper pyrites,silica is added to produce copper silicate.
$(C)$ Partial oxidation of sulphide ore of copper by roasting,followed by self-reduction produces blister copper.
$(D)$ In the cyanide process,zinc powder is utilized to precipitate gold from $Na[Au(CN)_2]$.
$(A)$ $A$ mixture of $PbS$ and $PbO$ undergoes self-reduction to produce $Pb$ and $SO_2$.
$(B)$ In the extraction process of copper from copper pyrites,silica is added to produce copper silicate.
$(C)$ Partial oxidation of sulphide ore of copper by roasting,followed by self-reduction produces blister copper.
$(D)$ In the cyanide process,zinc powder is utilized to precipitate gold from $Na[Au(CN)_2]$.
What is known as Thomas slag?
Difficult
View SolutionWhich of the following reactions does not occur in the Bessemer converter?
Medium
View SolutionWhich of the following reactions is $NOT$ entropy-driven with reference to extractive metallurgy? (unbalanced reactions)
Medium
View SolutionIn the wrought iron of the iron pillar located in Delhi,what other elements are present besides iron?
Medium
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