MCQ
Structural formula of ethyne is:
  • A
    $\text{H}-\text{C}\equiv\text{C}-\text{H}$
  • B
    $\text{H}_3-\text{C}\equiv\text{C}-\text{H}$
  • C


  • D


Answer

  1. $\text{H}-\text{C}\equiv\text{C}-\text{H}$

Explanation: General formula for alkyne is CnH2n-2. There must be at least one triple bond between carbon atoms. With two carbon atom, the possible structure would be $\text{H}-\text{C}\equiv\text{C}-\text{H}.$

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