Among statements (I) – (IV), the correct ones are-

(I) Limestone is decomposed to CaO during the extraction of iron from its oxides
(II) In the extraction of silver, silver is extracted as an anionic complex
(III) Nickel is purified by Mond's process
(IV) Zr and Ti are purified by the Van Arkel method


1. (III) and (IV) only
2. (I), (III), and (IV) only
3. (II), (III), and (IV) only
4. (I), (II), (III), and (IV)

Subtopic:  Metallurgy of individual elements | Refining Process |
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Match the elements in Column I with methods of purification in Column II.

     Column I       Column II

(a) Boron             (i) Van Arkel method

(b) Tin                 (ii) Mond's process

(c) Zirconium       (iii) Liquation

(d) Nickel            (iv) Zone refining

(1) (a)-(iv) (b)-(iii) (c)-(i) (d)-(ii)

(2) (a)-(iv) (b)-(iii) (c)-(ii) (d)-(i)

(3) (a)-(ii) (b)-(i) (c)-(iv) (d)-(iii)

(4) (a)-(iii) (b)-(iv) (c)-(i) (d)-(ii)

Subtopic:  Metallurgy of individual elements | Refining Process |
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