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Which of the following is not a property of copper?

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Which of the following is not a property of copper?

(a) Copper is a good conductor of heat

(b) The melting point of copper is 1083°C

(c) Copper becomes brittle above its melting point

(d) The specific gravity of copper is 8.9

I got this question in examination.

Question is from Non-Ferrous Metals and Alloys in section Steel, Timber, Mortar, Plastics, Non-Ferrous Metals and Alloys of Construction & Building Materials

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Correct choice is (c) Copper becomes brittle above its melting point

The best I can explain: Copper is a good conductor of heat. The melting point of copper is 1083°C and it becomes brittle just below its melting point. The specific gravity of copper is 8.9.

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