Lesson eLearning

Which functional group is present in the compound CH₃CH₂OH?

easy MCQ 1 mark Class 10 · Science · Carbon and its Compounds
  1. Carboxyl group (-COOH)
  2. Hydroxyl group (-OH)
  3. Aldehyde group (-CHO)
  4. Amine group (-NH₂)
Answer
Hydroxyl group (-OH)

The correct answer is Hydroxyl group (-OH) — Therefore the compound contains a hydroxyl group.

Step-by-step solution

  1. Identify the atoms attached to the carbon chain: the compound has a –OH group attached to the second carbon.
  2. A functional group containing an oxygen atom attached to hydrogen is the hydroxyl group.
  3. Therefore the compound contains a hydroxyl group.
Common mistake: Confusing the –OH group with a carboxyl group (-COOH)

Concept tested: Functional groups in organic compounds

Published · How this solution was prepared and checked

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