Which of the following statement(s) is/are in | vedclass

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(D) Statement $A$ is correct: Liquation is used for metals with low melting points (e.g.,$Sn, Pb, Bi$) compared to impurities.Statement $B$ is correct

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Amalgamation method of purification cannot be applied for $Au$ and $Ag$.

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(D) Statement $A$ is correct: Liquation is used for metals with low melting points (e.g.,$Sn, Pb, Bi$) compared to impurities.Statement $B$ is correct: $Fe_3C$ (cementite) formation increases the hardness of steel.Statement $C$ is correct: Metals like $Hg$ $(HgS + O_2 \rightarrow Hg + SO_2)$ and $Cu$ ($2Cu_2S + 3O_2 \rightarrow 2Cu_2O + 2SO_2$; $2Cu_2O + Cu_2S \rightarrow 6Cu + SO_2$) are extracted via auto-reduction.Statement $D$ is incorrect: The amalgamation process is specifically used for the extraction and purification of noble metals like $Au$ and $Ag$ because they form amalgams with mercury.

List-$I$	List-$II$
$A$. Concentration of gold ore	$I$. Aniline
$B$. Leaching of alumina	$II$. $NaOH$
$C$. Froth stabiliser	$III$. $SO_2$
$D$. Blister copper	$IV$. $NaCN$

Which of the following statement$(s)$ is/are incorrect?

Similar Questions

The process of the extraction of copper from copper pyrites involves:-
$(I)$ Froth floatation $(II)$ Calcination $(III)$ Roasting $(IV)$ Self reduction $(V)$ Smelting $(VI)$ Liquation $(VII)$ Electrorefining

Steel contains

What is the percentage $(\%)$ of silver in German silver?

Match List-$I$ with List-$II$.

List-$I$ List-$II$

$A$. Concentration of gold ore $I$. Aniline

$B$. Leaching of alumina $II$. $NaOH$

$C$. Froth stabiliser $III$. $SO_2$

$D$. Blister copper $IV$. $NaCN$

Choose the correct answer from the options given below.

$A$ piece of steel is heated until redness and then plunged into cold water or oil. This treatment of iron makes it:

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