5. For many purposes, aluminium can be used in place of: a. copper b. coal c. iron
Answers
Answer:
c
Explanation:
Iron is the correct answrer
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Answer:(a)Copper: Aluminum is also more ductile than copper, enabling it to be formed into wires much more easily. Lastly, its corrosion-resistance helps protect wires from the elements. In addition to power lines and cables, aluminum is used in motors, appliances, and power systems.
(b)coal:For many purposes Aluminium can be used in place of copper
Aluminium is also a great conductor of electricity. And it is much cheaper than its counterpart Copper. So we often use aluminium in electric wires and other such power transmission lines.
(c)iron:In fact, it is the second most malleable metal. It is also a non-toxic metal. This results in a large variety of household uses of aluminium. In our everyday use, we will see aluminium use in cans, foils and kitchen utensils.
