MCQOPTIONS
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MCQOPTIONS
This section includes 268 Mcqs, each offering curated multiple-choice questions to sharpen your Banking And Financial Awareness knowledge and support exam preparation. Choose a topic below to get started.
| 251. |
Naturally occuring substances from which a metal can be profitably (or economically) extracted are called? |
| A. | Minerals |
| B. | Ores |
| C. | Gangue |
| D. | Salts |
| Answer» C. Gangue | |
| 252. |
Horn silver is |
| A. | an oxide ore of silver |
| B. | a sulphite ore of silver |
| C. | a carbonate ore of silver |
| D. | a chloride ore of silver |
| Answer» E. | |
| 253. |
Alumina is chief ore of which of the following metal? |
| A. | Na |
| B. | K |
| C. | Ca |
| D. | Al |
| Answer» E. | |
| 254. |
Graphite is a/an - |
| A. | alloy |
| B. | metal |
| C. | metalloid |
| D. | non-metal |
| Answer» E. | |
| 255. |
German silver is a mixture of- |
| A. | copper and zinc |
| B. | copper and tin |
| C. | copper, nickel and zinc |
| D. | aluminium, copper and traces of Mg and Mn. |
| Answer» D. aluminium, copper and traces of Mg and Mn. | |
| 256. |
The best mealleable metal is - |
| A. | aluminium |
| B. | silver |
| C. | gold |
| D. | lead |
| Answer» D. lead | |
| 257. |
When iron is left exposed in open air, it gets rusted. Which constituent(s) of air is /are responsible for rusting iron? (i) Oxygen gas present in air (ii) Moisture present in air (iii) Carbon dioxide gas present in air Select the correct answer using the code given below: |
| A. | (i) only |
| B. | (ii) only |
| C. | (i) and (ii) |
| D. | (ii) and (iii) |
| Answer» D. (ii) and (iii) | |
| 258. |
Consider the following statements: Nitrogen is an essential constituent of (i) soils (ii) animals (iii) plants Which of the statements given above is/are correct? |
| A. | (iii) only |
| B. | (i) and (iii) only |
| C. | (i) and (ii) only |
| D. | (i), (ii) and (iii) |
| Answer» E. | |
| 259. |
Consider the following elements: (i) Copper (ii) Gold (iii) Platinum (iv) Silver Which of the above elements exist free in nature? |
| A. | (i) and(ii) |
| B. | (ii) and (iii) |
| C. | (i),(ii) and (iv) |
| D. | (iii) and (iv) |
| Answer» D. (iii) and (iv) | |
| 260. |
Select the property that is associated with non-metals. |
| A. | Low density |
| B. | Low melting point |
| C. | Poor conductor of electricity |
| D. | All of the above |
| Answer» E. | |
| 261. |
The metalloids include the elements |
| A. | Boron, Silicon |
| B. | Arsenic, Antimony |
| C. | Germanium, Tellurium |
| D. | All of these |
| Answer» B. Arsenic, Antimony | |
| 262. |
Metals like Gold, Platinum which do not easily react are called |
| A. | active metals |
| B. | dull metals |
| C. | noble metals |
| D. | bright metals |
| Answer» D. bright metals | |
| 263. |
One of the constituents of amalgam is |
| A. | aluminium |
| B. | copper |
| C. | iron |
| D. | mercury |
| Answer» E. | |
| 264. |
The chief ore of aluminium is |
| A. | bauxite |
| B. | cryolite |
| C. | alunite |
| D. | feldspar |
| Answer» B. cryolite | |
| 265. |
Sodium is obtained by the electrolysis of |
| A. | an aqueous solution of sodium chloride |
| B. | an aqueous solution of sodium hydroxide |
| C. | fused sodium chloride |
| D. | fused sodium sulphate |
| Answer» D. fused sodium sulphate | |
| 266. |
Which of the following is an oxide ore? |
| A. | Bauxite |
| B. | Cuprite |
| C. | Haematite |
| D. | All of these |
| Answer» E. | |
| 267. |
Calcination is the process of heating the ore |
| A. | in a blast furnace |
| B. | in absence of air |
| C. | in presence of air |
| D. | none of these |
| Answer» C. in presence of air | |
| 268. |
Which of the following elements does not lose an electron easily? |
| A. | Na |
| B. | F |
| C. | Mg |
| D. | Al |
| Answer» C. Mg | |