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| Q. |
Magnalium is an alloy of – |
| A. | Aluminium and Magnesium |
| B. | Magnesium and Tin |
| C. | Aluminium and Zinc |
| D. | Manganese and Magnesium |
| Answer» A. Aluminium and Magnesium | |
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Explanation: MagnaHum is an aluminium alloy with 1.5 to 2% magnesium and small amounts of copper, nickel, and tin. Some alloys, intended for particular uses at the cost of poor corrosion resistance, may consist of up to 50% magnesium. It finds use in engineering and pyrotechnics. Alloys with smaller amounts of magnesium (about 5%) exhibit greater strength, greater corrosion resistance, and lower density than pure aluminium. |
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