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Answer the following questions. (a) Why is it possible to draw silver into a wire when even a long pencil-point breaks so easily? (b) Why is copper used for electrical wiring in our houses? (c) Why does a copper vessel shine again after scrubbing? (d) Give two characteristics of alloys. (e) What is meant by corrosion? |
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Answer» Answer the following questions. (a) Why is it possible to draw silver into a wire when even a long pencil-point breaks so easily? (b) Why is copper used for electrical wiring in our houses? (c) Why does a copper vessel shine again after scrubbing? (d) Give two characteristics of alloys. (e) What is meant by corrosion? |
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