Medium
Which metal is added to recover $Au$ from $[Au(CN)_2]^-$?
- A$Zn$
- B$Cu$
- C$Fe$
- D$Ag$
Explore More
Similar Questions
In the extraction of silver by the Mac-Arthur-Forrest cyanide process,a small amount of $KNO_3$ is also added as a flux. The function of $KNO_3$ is
Medium
View SolutionWhich one is used as a by-product in Serpeck's process?
Easy
View SolutionIn the electrolytic extraction of $Al$,molten cryolite $(Na_3AlF_6)$ is used because it .......
Medium
View SolutionThe reaction occurring in the final stage of the extraction of copper from copper pyrites in a Bessemer converter is:
Easy
View SolutionConsider the following reactions:
$2 \, XS + 3 \, O_2 \xrightarrow{\Delta} 2 \, XO + 2 \, SO_2$
$2 \, XO + XS \xrightarrow{\Delta} 3 \, X + SO_2$
Then $X$ can not be
$2 \, XS + 3 \, O_2 \xrightarrow{\Delta} 2 \, XO + 2 \, SO_2$
$2 \, XO + XS \xrightarrow{\Delta} 3 \, X + SO_2$
Then $X$ can not be
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