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NEETChemistryBiomolecules

Which of the following reactions cannot be explained by the open-chain structure of D-glucose?

Options

  1. AAcetylation of glucose with acetic anhydride gives glucose pentaacetate which confirms the presence of five –O
  2. BGlucose gets oxidized to six carbon carboxylic acid (gluconic acid)
  3. CGlucose reacts with hydroxylamine to form an oxime and adds a molecule of hydrogen cyanide to give cyanohydrin
  4. DDespite having the aldehyde group, glucose does not give Schiff’s test and it does not form the hydrogen sulfi

Correct answer

D. Despite having the aldehyde group, glucose does not give Schiff’s test and it does not form the hydrogen sulfi

Step-by-step solution

Correct Option is : (D) Despite having the aldehyde group, glucose does not give Schiff’s test and it does not form the hydrogen sulfite addition product with NaHSO 3 .

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