Identify the carbon atoms of $\alpha$-glucose and $\beta$-fructose forming glycosidic linkage in sucrose.

Identify the carbon atoms of $\alpha$-glucose and $\beta$-fructose forming glycosidic linkage in sucrose.
  1. $\mathrm{C}$ - 1 of $\beta$-fructose and $\mathrm{C}$ - 2 of $\alpha$-glucose
  2. $\mathrm{C}-1$ of $\alpha$-glucose and $\mathrm{C}-2$ of $\beta$-fructose
  3. $\mathrm{C}-1$ of $\alpha$-glucose and $\mathrm{C}-1$ of $\beta$-fructose
  4. $\mathrm{C}-2$ of $\alpha$-glucose and $\mathrm{C}-2$ of $\beta$-fructose

Solution

Structure of sucrose contains glycosidic linkage between - $\mathrm{C}-1$ of $\alpha$-glucose and $\mathrm{C}-2$ of $\beta$-fructose. Aldehyde and ketone groups of both the monosaccharide units are involved in formation of the glycosidic bond.

Asked in: MHT CET 2023 (09 May Shift 2)

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