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JEE Advanced levelOne or more correct optionsDifficulty 3 of 3ro201

For complete oxidation by excess , which of the following correctly give the moles of consumed per mole of compound?

  1. Aethane-1,2-diol: 1
  2. Bglycerol: 2
  3. Cerythritol: 3
  4. Dsorbitol: 4

Answer: A, B, C

For an unbranched polyol with n carbons all bearing OH, n-1 C-C bonds are cleaved. Ethane-1,2-diol uses 1, glycerol 2 and erythritol 3. Sorbitol has six carbons, so it uses 5, not 4.
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