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Chapter 1 - Transition Elements and Iron Metallurgy

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Lesson 3: Iron Ore Extraction, Reduction Furnaces and Alloy Classifications — Picture questions (exam style)

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  • Questions count: 14
  • Passing grade: 60%
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1.
What mass of iron (tonnes) can in theory be extracted from 5 t of magnetite ore (Fe₃O₄) of 80% purity? (Fe = 56, O = 16, C = 12, H = 1)
What mass of iron (tonnes) can in theory be extracted from 5 t of magnetite ore (Fe₃O₄) of 80% purity? (Fe = 56, O = 16, C = 12, H = 1)
4.06 t
2.90 t
3.62 t
0.966 t
2.
What mass of iron (tonnes) can in theory be extracted from 1 t of haematite ore (Fe₂O₃) of 65% purity? (Fe = 56, O = 16, C = 12, H = 1)
What mass of iron (tonnes) can in theory be extracted from 1 t of haematite ore (Fe₂O₃) of 65% purity? (Fe = 56, O = 16, C = 12, H = 1)
0.227 t
0.455 t
0.637 t
0.700 t
3.
What mass of iron (tonnes) can in theory be extracted from 10 t of haematite ore (Fe₂O₃) of 90% purity? (Fe = 56, O = 16, C = 12, H = 1)
What mass of iron (tonnes) can in theory be extracted from 10 t of haematite ore (Fe₂O₃) of 90% purity? (Fe = 56, O = 16, C = 12, H = 1)
3.15 t
8.82 t
6.30 t
7.00 t
4.
What mass of iron (tonnes) can in theory be extracted from 100 t of siderite ore (FeCO₃) of 40% purity? (Fe = 56, O = 16, C = 12, H = 1)
What mass of iron (tonnes) can in theory be extracted from 100 t of siderite ore (FeCO₃) of 40% purity? (Fe = 56, O = 16, C = 12, H = 1)
33.6 t
48.3 t
19.3 t
27.0 t
5.
What mass of iron (tonnes) can in theory be extracted from 50 t of siderite ore (FeCO₃) of 60% purity? (Fe = 56, O = 16, C = 12, H = 1)
What mass of iron (tonnes) can in theory be extracted from 50 t of siderite ore (FeCO₃) of 60% purity? (Fe = 56, O = 16, C = 12, H = 1)
24.1 t
25.2 t
20.3 t
14.5 t
6.
What mass of iron (tonnes) can in theory be extracted from 5 t of limonite ore (2Fe₂O₃·3H₂O) of 85% purity? (Fe = 56, O = 16, C = 12, H = 1)
What mass of iron (tonnes) can in theory be extracted from 5 t of limonite ore (2Fe₂O₃·3H₂O) of 85% purity? (Fe = 56, O = 16, C = 12, H = 1)
0.636 t
2.55 t
2.99 t
3.56 t
7.
What mass of iron (tonnes) can in theory be extracted from 20 t of magnetite ore (Fe₃O₄) of 80% purity? (Fe = 56, O = 16, C = 12, H = 1)
What mass of iron (tonnes) can in theory be extracted from 20 t of magnetite ore (Fe₃O₄) of 80% purity? (Fe = 56, O = 16, C = 12, H = 1)
3.86 t
16.2 t
11.6 t
14.5 t
8.
What mass of iron (tonnes) can in theory be extracted from 2 t of haematite ore (Fe₂O₃) of 40% purity? (Fe = 56, O = 16, C = 12, H = 1)
What mass of iron (tonnes) can in theory be extracted from 2 t of haematite ore (Fe₂O₃) of 40% purity? (Fe = 56, O = 16, C = 12, H = 1)
0.280 t
0.784 t
0.560 t
1.40 t
9.
What mass of iron (tonnes) can in theory be extracted from 20 t of limonite ore (2Fe₂O₃·3H₂O) of 90% purity? (Fe = 56, O = 16, C = 12, H = 1)
What mass of iron (tonnes) can in theory be extracted from 20 t of limonite ore (2Fe₂O₃·3H₂O) of 90% purity? (Fe = 56, O = 16, C = 12, H = 1)
2.70 t
12.0 t
10.8 t
15.1 t
10.
What mass of iron (tonnes) can in theory be extracted from 1 t of limonite ore (2Fe₂O₃·3H₂O) of 65% purity? (Fe = 56, O = 16, C = 12, H = 1)
What mass of iron (tonnes) can in theory be extracted from 1 t of limonite ore (2Fe₂O₃·3H₂O) of 65% purity? (Fe = 56, O = 16, C = 12, H = 1)
0.545 t
0.389 t
0.0973 t
0.599 t
11.
What mass of iron (tonnes) can in theory be extracted from 2 t of limonite ore (2Fe₂O₃·3H₂O) of 40% purity? (Fe = 56, O = 16, C = 12, H = 1)
What mass of iron (tonnes) can in theory be extracted from 2 t of limonite ore (2Fe₂O₃·3H₂O) of 40% purity? (Fe = 56, O = 16, C = 12, H = 1)
0.479 t
0.120 t
1.20 t
0.671 t
12.
What mass of iron (tonnes) can in theory be extracted from 50 t of limonite ore (2Fe₂O₃·3H₂O) of 90% purity? (Fe = 56, O = 16, C = 12, H = 1)
What mass of iron (tonnes) can in theory be extracted from 50 t of limonite ore (2Fe₂O₃·3H₂O) of 90% purity? (Fe = 56, O = 16, C = 12, H = 1)
6.74 t
29.9 t
27.0 t
37.7 t
13.
What mass of iron (tonnes) can in theory be extracted from 100 t of limonite ore (2Fe₂O₃·3H₂O) of 75% purity? (Fe = 56, O = 16, C = 12, H = 1)
What mass of iron (tonnes) can in theory be extracted from 100 t of limonite ore (2Fe₂O₃·3H₂O) of 75% purity? (Fe = 56, O = 16, C = 12, H = 1)
59.9 t
11.2 t
44.9 t
62.9 t
14.
What mass of iron (tonnes) can in theory be extracted from 10 t of limonite ore (2Fe₂O₃·3H₂O) of 70% purity? (Fe = 56, O = 16, C = 12, H = 1)
What mass of iron (tonnes) can in theory be extracted from 10 t of limonite ore (2Fe₂O₃·3H₂O) of 70% purity? (Fe = 56, O = 16, C = 12, H = 1)
5.99 t
5.87 t
1.05 t
4.19 t
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