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Which one of the following statements is not correct?

Options

  1. AAll carbons in diamond are linked by carbon-carbon single bond.
  2. BGraphite is layered structure in which layers are held together by weak van der Waals forces.
  3. CGraphite layers are formed byhexagonal rings of carbon atoms.
  4. DGraphite layers are held together by carbon-carbon single bond.

Correct answer

D. Graphite layers are held together by carbon-carbon single bond.

Step-by-step solution

In graphite, each carbon atom is bonded to three other carbon atoms in the same plane giving a hexagonal array. One of these bonds is a double-bond, and thus the valency of carbon is satisfied. Graphite structure is formed by the hexagonal arrays being placed in layers one above the other.

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