GK
ELEMENTS COMPOUNDS SUBSTANCES METALS AND NON METALS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Al
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Cu
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Fe
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Coal
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Detailed explanation-1: -Coal is a form of carbon, which is a non-metal. Hence, cannot be drawn into wires.
Detailed explanation-2: -Out of the given elements platinum, aluminium and copper are metals while carbon is a non-metal. Therefore, carbon cannot be drawn into a wire.
Detailed explanation-3: -So, for the substance to be drawn into wires, the substance must have the property of ductility and for the substance to be drawn into sheets, the substance must have the property of malleability. So coal cannot be drawn into wires and sheets.
Detailed explanation-4: -Copper is a metal and it can be easily drawn into wires.
Detailed explanation-5: -Carbon is non-metal. So, Carbon is brittle in nature and it is non-malleable and non-ductile in nature. It would crumble if it is tried to draw into a wire.