question_answer 46)

    Which of the following options are correct? (a) Cast iron is obtained by remelting pig iron with scrap iron and coke using hot air blast. (b) In extraction of silver, silver is extracted as cationic complex. (c) Nickel is purified by zone refining. (d) Zr and Ti are purified by van Arkel method.

Answer:

                    (a, d) Correct statements are (a) Cast iron is obtained by remelting pig iron with scarp iron and coke using hot air blast. (b) Zr and Ti are purified by van Arkel method as (b) and (c) can be correctly stated as (b) ln extraction of silver, silver is extracted as anionic complex (c)Nickel is purified by vapour phase refining method.