NEET 2020 · ChemistryCarbohydratesPrevious Year Question
Sucrose on hydrolysis gives:
Answer: (A) α-D-Glucose + β-D-Fructose. \textbf{Answer:} (A) Sucrose hydrolyses to α-D-glucose and β-D-fructose.
- A.α-D-Glucose + β-D-Fructose✓
- B.α-D-Fructose + β-D-Fructose
- C.β-D-Glucose + α-D-Fructose
- D.α-D-Glucose + β-D-Glucose
Correct Answer
(A) α-D-Glucose + β-D-Fructose
Solution & Explanation
\textbf{Answer:} (A) Sucrose hydrolyses to α-D-glucose and β-D-fructose. \textbf{Solution:} Sucrose is a non-reducing disaccharide in which the anomeric carbons of α-D-glucose and β-D-fructose are joined by an α,β-glycosidic linkage. On hydrolysis (inversion of cane sugar), this linkage is cleaved to give an equimolar mixture of α-D-glucose and β-D-fructose . Hence option A is correct.
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