Hydrolysis of sucrose with dilute aqueous sul | vedclass

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Question

(A) On hydrolysis with dilute aqueous sulphuric acid,sucrose undergoes cleavage of the glycosidic bond to form an equimolar mixture of $D-(+)$-glucose

Vedclass · Accepted Answer

$1:1$ $D-(+)$-glucose and $D-(-)$-fructose

Vedclass · Answer

(A) On hydrolysis with dilute aqueous sulphuric acid,sucrose undergoes cleavage of the glycosidic bond to form an equimolar mixture of $D-(+)$-glucose and $D-(-)$-fructose.The chemical reaction is:$C_{12}H_{22}O_{11} + H_2O$ $\xrightarrow{H_2SO_4} C_6H_{12}O_6 (D-(+)	ext{-glucose}) + C_6H_{12}O_6 (D-(-)	ext{-fructose})$Sucrose is dextrorotatory (specific rotation $= +66.1^{\circ}$),but the resulting mixture is levorotatory (specific rotation $= -20.0^{\circ}$) because the levorotation of fructose is greater than the dextrorotation of glucose. This process is known as the inversion of cane sugar.

Hydrolysis of sucrose with dilute aqueous sulphuric acid yields

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