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प्रश्न
In Van Arkel method for refining zirconium or titanium, the halogen used is __________.
विकल्प
fluorine
chlorine
bromine
iodine
MCQ
उत्तर
iodine
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Explain magnetic separation process of ores with the help of a neat, labelled diagram.
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(B) reducing agent
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| Column I | Column II |
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| (B) Malachite | (2) Nickel steel |
| (C) Calamine | (3) \[\ce{Na3AlF6}\] |
| (D) Cryolite | (4) \[\ce{CuCO3.Cu (OH)2}\] |
| (5) \[\ce{ZnCO3}\] |
