In the liquation process used for tin $(Sn)$,the metal

Match List-$I$ with List-$II$ and select the correct answer using the codes given below:

List-$I$	List-$II$
$(I)$ Van Arkel method	$a.$ Refining of Titanium
$(II)$ Solvay process	$b.$ Manufacture of $Na_2CO_3$
$(III)$ Cupellation	$c.$ Refining of Copper
$(IV)$ Poling	$d.$ Refining of Silver

How many of the following can be purified by using zone refining method?
$Ni, B, Ti, In, Ge, Mn, Ag, Si, Ga$

The formation of $Ni(CO)_4$ and its subsequent decomposition into $Ni$ and $CO$ forms the basis of the Mond process.
$Ni + 4CO$ $\xrightarrow{T_1} Ni(CO)_4$ $\xrightarrow{T_2} Ni + 4CO$
What are the values of $T_1$ and $T_2$?

Which of the following pairs of metals is purified by the van Arkel method?

Which method is used to obtain pure nickel from impure nickel?