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This section includes 7 InterviewSolutions, each offering curated multiple-choice questions to sharpen your Current Affairs knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
State the main constituent metal in each alloy : 1. Duralumin 2. Brass 3. Stainless steel |
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Answer» 1. Aluminium 2. Copper 3. Iron |
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| 2. |
State the property of the metal being utilized in the following : 1. Zinc in Galvanization 2. Aluminium in Thermite welding |
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Answer» Use of metal : (a) Zinc in Galvanization (b) Aluminium in Thermite welding Property : (a) Zinc forms a protective layer of zinc oxide which prevents rusting of iron. (b) Strong affinity for oxygen. |
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| 3. |
Correct the following statements. — Haematite is the chief ore of aluminium. |
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Answer» Haematite is the chief ore of iron. OR Bauxite is the chief ore of aluminium. |
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| 4. |
The metal oxide which can react with acid as well as alkali is : A. Silver oxide B. Copper (II) oxide C. Aluminium oxide D. Calcium oxide |
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Answer» C. Aluminium oxide |
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