Question

Compare the Physical properties of coal and gold

Answer 1

Answer:

1) Coal is non lustorous and gold is lustorous.

2) Coal float in water whereas gold sink in water.

3) Gold is ductile whereas coal is non ductile.

4) Gold is malleable whereas coal is not malleable.

5) Coal has less densty whereas gold has high density

Answer 2

Explanation:

Other properties, such as hardness, grindability, ash-fusion temperature, and free-swelling index (a visual measurement of the amount of swelling that occurs when a coal sample is heated in a covered crucible), may affect coal mining and preparation, as well as the way in which a coal is used.

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