Which of the following properties are usually shown by metals?
i. They have a lustre (shine).
ii. They conduct heat and electricity.
iii. They are malleable (can be hammered into thin sheets).
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A.
i and iii only
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B.
i and ii only
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C.
ii and iii only
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D.
i, ii and iii
Correct Answer:
D. i, ii and iii
Explanation:
Metals are typically characterized by several distinct physical properties. They possess a natural shine known as metallic lustre. Additionally, metals are excellent conductors of both thermal energy and electricity. They are also malleable, meaning they can be deformed under compression and hammered or rolled into thin sheets without breaking. Since all three statements accurately describe the common properties of metals, the correct answer is i, ii, and iii.
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