Ti and Zr are purified by

Among statements (a) - (d) , the correct ones are (a) Lime stone is decomposed to CaO during the extraction of iron from its oxides (b) In the extraction of silver , silver is extracted as an anionic complex. (c) Nickel is purified by Mond's process . (d) Zr and Ti are purified by Van Arkel method .

Among statements (a) - (d) , the correct ones are (a) Lime stone is decomposed to CaO during the extraction of iron from its oxides (b) In the extraction of silver , silver is extracted as an anionic complex. (c) Nickel is purified by Mond's process . (d) Zr and Ti are purified by Van Arkel method .

Assertion (A) : Zr can be purified by van Arkel method. Reason (R) : ZrI_(4) is volatile and dissociates at 1800 K.

Assertion : Ti can be purified by Van Arkel process. Reason: TiI_(4) is a volatile compound which decomposes at a high temperature.

Assertion : Ti can be purified by Van Arkel process. Reason: TiI_(4) is a volatile compound which decomposes at a high temperature.

Colloids are purified by