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Q. No.The ore/s that can be concentrated by the magnetic separation method is/are :
1. Haematite
2. Siderite
3. Iron pyrite
4. All of the above
1. Haematite
2. Siderite
3. Iron pyrite
4. All of the above
Subtopic: Metallurgy of individual elements |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyAt which conditions, Mg can reduce Al2O3 and Al can reduce MgO?
(Given : Elligham diagram)
(Given : Elligham diagram)
| 1. | Above 1350°C, Mg can reduce Al2O3 and below1350°C, Al can reduce MgO |
| 2. | Mg can reduce Al2O3 and Al can reduce MgO above 1350°C |
| 3. | Mg can reduce Al2O3 and Al can reduce MgO below 1350°C |
| 4. | Below 1350°C, Mg can reduce Al2O3 and above 1350°C, Al can reduce MgO |
Subtopic: Ellingham Diagram |
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Please attempt this question first.
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologySelect Chapter Topics:
- 1(current)
Q. No.
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