Easy
Which of the following chemical equations represents the hydrometallurgical process for the extraction of copper from its ore?
- A$Cu^{2+} (aq) + H_2 (g) \rightarrow Cu (s) + 2H^+ (aq)$
- B$Cu^{2+} (aq) + Fe (s) \rightarrow Cu (s) + Fe^{2+} (aq)$
- C$Cu_2S + 2Cu_2O \rightarrow 6Cu + SO_2$
- D$Cu_2S + H_2 \rightarrow 2Cu + H_2S$
Explore More
Similar Questions
Which statement is incorrect regarding the Hall-Heroult process for the metallurgy of aluminium?
$1$. Use of $Na_3AlF_6$ lowers the melting point of $Al_2O_3$.
$2$. Steel vessel with a lining of carbon acts as the cathode.
$3$. Graphite is used as the anode.
$4$. Carbon dioxide gas is generated at the cathode.
$1$. Use of $Na_3AlF_6$ lowers the melting point of $Al_2O_3$.
$2$. Steel vessel with a lining of carbon acts as the cathode.
$3$. Graphite is used as the anode.
$4$. Carbon dioxide gas is generated at the cathode.
In the metallurgy of $Zn$,flux is not used because
Difficult
View SolutionDescribe the reaction occurring in the blast furnace at the lower temperature range.
Easy
View SolutionAssertion : Extraction of iron metal from iron oxide ore is carried out by heating with coke.
Reason : The reaction,
$Fe_2O_{3(s)} \to Fe_{(s)} + 3/2 O_{2(g)}$ is a spontaneous process.
Reason : The reaction,
$Fe_2O_{3(s)} \to Fe_{(s)} + 3/2 O_{2(g)}$ is a spontaneous process.
DifficultAIIMS 2005
View SolutionIn the extraction of aluminium,bauxite $(Al_2O_3 \cdot 2H_2O)$ is dissolved in molten cryolite $(Na_3AlF_6)$ because:
Easy
View SolutionVedclass Products
For Students
Vedclass Test Series
Mock tests in real JEE/NEET style with performance analysis. 5-day free trial.
Start Free TrialFor Teachers
Exam Paper Generator
Generate Set A/B/C/D exam papers from 7.5L+ questions in 2 minutes. 3 chapters free.
Try FreeFor Institutes
Online Exam Module
Live online exams with unlimited students, 360° analytics & white-label branding.
See Demo