The following carbohydrate is

The following carbohydrate is
  1. a ketohexose
  2. an aldohexose
  3. an $\alpha$-furanose
  4. an $\alpha$-pyranose

Solution

Here, the- $\mathrm{OH}$ of hemiacetal group is equatorial therefore, it is a $\beta$-pyranose of an aldohexose.

Asked in: JEE Advanced 2011 (Paper 2)

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