Embibe Experts Solutions for Chapter: General Principles and Processes of Isolation of Metals (Metallurgy), Exercise 1: Level 1

Select the correct statement(s) with respect to the differences between roasting and calcination.

The major role of fluorspar $\left({\mathrm{CaF}}_2\right)$ which is added in small quantities in the electrolytic reduction of alumina dissolved in fused cryolite $\left({\mathrm{Na}}_3{\mathrm{AlF}}_6\right)$ is

Extraction of zinc from zinc blende is achieved by

Native silver metal forms a water-soluble complex with a dilute aqueous solution of $\mathrm{NaCN}$ in the presence of

The major products of the following reaction, $ZnS\left(\mathrm{s}\right)+{\mathrm{O}}_2\left(\mathrm{g}\right)\stackrel{\mathrm{heat}}{⟶}$, are:

Which of the following statements is correct about $\left[\mathrm{Y}\right]?$

$\left[\mathrm{Y}\right]={\mathrm{Cu}}_2\mathrm{S}$ or ${\mathrm{CuFeS}}_2$

The extraction of silver is achieved by initial complexation of the ore (Argentite) with $\mathrm{X}$, followed by reaction with $\mathrm{Y}, \mathrm{X}$ and $\mathrm{Y}$, respectively, are:

When ${\mathrm{Cu}}^{2+}$ion is treated with $\mathrm{KI}$, a white precipitate is formed. The white precipitate $\left(\mathrm{P}\right)$ is of?