MCQ
In $P_4\ ($tetrahedral$):$
  • A
    Each $P$ is joined to four $P.$
  • Each $P$ is joined to three $P.$
  • C
    Each $P$ is joined to two $P.$
  • D
    $P_4$​ does not exist.

Answer

Correct option: B.
Each $P$ is joined to three $P.$

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