Class 12ChemistryGeneral Principles and Processes of Isolation of ElementsMix Examples of General Principles and processes of Isolation of Elements
EasyThe statement that is $NOT$ correct is:
- ACollectors enhance the wettability of mineral particles during froth flotation.
- BCopper from its low grade ores is extracted by hydrometallurgy.
- C$A$ furnace lined with Haematite is used to convert cast iron to wrought iron.
- DIn vapour phase refining,metal should form a volatile compound.
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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 are the metals and their approximate percentages in German silver?
Solder is an alloy of
What is the percentage of carbon in steel?
Easy
View SolutionBlister copper is ..........
Medium
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