During the electrolytic refining of silver,the anode mud contains:

Match List-$I$ with List-$II$:

List-$I$	List-$II$
$a$. Mercury	$i$. Vapour phase refining
$b$. Copper	$ii$. Distillation refining
$c$. Silicon	$iii$. Electrolytic refining
$d$. Nickel	$iv$. Zone refining

Choose the most appropriate answer from the options given below:

The Mond process is used for the

Identify the statements which are not correct.
$a)$ Copper is refined by Van-Arkel method
$b)$ Zinc is refined by electrolysis method
$c)$ Zirconium is refined by distillation method

Which of the following elements is purified by vapour phase refining?

In order to refine "blister copper",it is melted in a furnace and stirred with green logs of wood. The purpose is: