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Assertion (A): Copper is a monoatomic solid.

Reason (R): In a metal the valence electrons belong to all atoms.

  • A.Both A and R are true and R is correct explanation of A
  • B.Both A and R are true but R is not correct explanation of A
  • C.A is true but R is false
  • D.A is false but R is true

Answer: B

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