Which one is a conductor but is not malleable ?
Correct answer: B. Graphite
- A. Iron
- B. Graphite
- C. Silver
- D. Platinum
Explanation
Graphite conducts electricity because its carbon layers contain delocalized electrons, but its layered structure makes it soft and not malleable like metals. Students may choose iron because it is a familiar conductor and malleable metal, overlooking that the question asks for a conductor that is not malleable.
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Crystalline solids contain particles arranged in a regular repeating lattice described by a unit cell. Their study includes coordination number, packing efficiency, density, anisotropy, cleavage, polymorphism and common crystal systems, along with ionic, molecular, covalent network and metallic crystals. Crystalline order differs from the random arrangement of amorphous solids.
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