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)
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)