InterviewSolution
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InterviewSolution
This section includes InterviewSolutions, each offering curated multiple-choice questions to sharpen your knowledge and support exam preparation. Choose a topic below to get started.
| 51. |
The earthly and siliceous impurities which generallty occur with ores are called _____or _____ |
| Answer» Correct Answer - Gangue,matrix | |
| 52. |
Froth flotation process is generally employed for _____ ores. |
| Answer» Correct Answer - Sulphide | |
| 53. |
The complete of extracting the metal form its ores is called _____. |
| Answer» Correct Answer - Metallurgy | |
| 54. |
Which of the following metals can be extracted by smelting ?A. AluminiumB. MagnesiumC. ironD. None of these |
| Answer» Correct Answer - C | |
| 55. |
Highly reactive elements occurs in nature in_____state. |
| Answer» Correct Answer - Combined | |
| 56. |
Minerals from which metals are extracted conveniently and economically are called ____. |
| Answer» Correct Answer - Ores | |
| 57. |
The major role of flourspar, `CaF_(2)` which is added in small amount in the electrolytic reduction of `Al_(2)O_(3)` dissolved on fused cryolite in fused cryolite isA. To increase the conductivity of the fused mixtureB. To lower the fusion temperature of the meltC. To act as catalystD. To decrease the rate of oxidation of carbon of carbon at the anode |
| Answer» Correct Answer - A::B | |