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GK QUESTION#3247

Which of the following is an open chain organic compound?

  1. AAcetaldehydeCorrect answer
  2. BTetrahydrofuran
  3. CBenzene
  4. DToluene
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Answer

A. Acetaldehyde

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Explanation

Acetaldehyde, CH₃CHO, has an open-chain two-carbon skeleton. Tetrahydrofuran is a five-membered oxygen-containing ring; benzene and toluene contain aromatic rings. Therefore acetaldehyde is the open-chain compound among the choices.

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