$A$ blast furnace is employed in the smelting of oxide ore with coke and flux in the metallurgy of:

Which of the following is not correct?

Read the following statements :
$(I)$ $Al$ has greater affinity than that of $Cr$ for oxygen
$(II)$ $Al$ can be used for reduction of $Fe_2O_3$
$(III)$ Carbon is used for reduction of $PbO$
$(IV)$ $SnO_2$ can be reduced by carbon
Choose the correct set of statement$(s)$:

Match List-$I$ with List-$II$ and select the correct code.

List-$I$	List-$II$
$I.$ Cyanide process	$a.$ Ultrapure $Ge$
$II.$ Froth floatation process	$b.$ Pine oil
$III.$ Electrolytic reduction	$c.$ Extraction of $Al$
$IV.$ Zone refining	$d.$ Extraction of $Au$

Select the correct statement.

Which of the following processes is $NOT$ involved in the extraction of metal from cassiterite $(SnO_2)$ ore?