In the concentration of $PbS$ containing $ZnS$ as impurity the depressant used is
$NaCN$
$ZnSO_4$
$PbSO_4$
aniline
In froth floatation $NaCN$ is used as depressant
Formation of $Ni(CO)_4$ and subsequent its decomposition into $Ni$ and $CO$ makes basis of Mond's process
$Ni\, + \,\,4CO\,\xrightarrow{{{T_1}}}Ni{(CO)_4}\,\xrightarrow{{{T_2}}}Ni + 4CO,$ $T_1$ and $T_2$ are
In metallurgical process of aluminium, cryolite is mixed with alumina in its molten state, because it
Sapphire is mineral of
Which metal is ultrapurified by carbon monoxide
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