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Chemistry · May / June 2017 · Paper 11 · Question 39

5070Carboxylic acids

An organic compound, X, has a molecular formula C4H8O2 and turns damp, blue litmus paper red. What is the structure of X?

  1. AH-C(H)(H)-C(H)(H)-C(=O)-O-C(H)(H)-H
  2. BH-C(H)(H)-C(=O)-O-C(H)(H)-C(H)(H)-H
  3. CH-C(=O)-O-C(H)(H)-C(H)(H)-C(H)(H)-H
  4. DH-O-C(=O)-C(H)(H)-C(H)(H)-C(H)(H)-H

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Correct answer: D. H-O-C(=O)-C(H)(H)-C(H)(H)-C(H)(H)-H

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