Question

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:

• A. (a)-(ii), (b)-(iii), (c)-(i), (d)-(iv)
• B. (a)-(ii), (b)-(iv), (c)-(iii),(d)-(ii)
• C. (a)-(i), (b)-(iv), (c)-(ii), (d)-(iii)
• D. (a)-(ii), (b)-(iii), (c)-(iv), (d)-(i)

Answer 1

The correct option is D (a)-(ii), (b)-(iii), (c)-(iv), (d)-(i)

Answer: (d)

(a) The pyrometallurgical extraction of mercury from its ore is essentially a distillation process

(b) The purification of metals by electrolysis. It is commonly applied to copper. A large piece of impure copper is used as the anode with a thin strip of pure copper as the cathode

(c) Zone Refining. Zone refining is a very useful method to get metals with very high purity such as silicon and germanium. It is also referred to as zone melting

(d) Mond's process for extraction of nickel and Van-Arkel Method for preparing ultra-pure titanium are based on the principle of vapour phase refining.