When one mole of lactose is hydrolysed,the hy | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(A) Lactose is a disaccharide with the formula $C_{12}H_{22}O_{11}$.On hydrolysis in the presence of an acid or the enzyme lactase,it undergoes cleava

Vedclass · Accepted Answer

$1.0 \ mol$ Galactose $+ 1.0 \ mol$ Glucose

Vedclass · Answer

(A) Lactose is a disaccharide with the formula $C_{12}H_{22}O_{11}$.On hydrolysis in the presence of an acid or the enzyme lactase,it undergoes cleavage to produce one molecule of $D-(+)$-glucose and one molecule of $D-(+)$-galactose.The chemical reaction is:$C_{12}H_{22}O_{11} + H_2O$ $\xrightarrow{H_3O^+ 	ext{ or lactase}} C_6H_{12}O_6 (	ext{Glucose}) + C_6H_{12}O_6 (	ext{Galactose})$Therefore,one mole of lactose yields $1.0 \ mol$ of glucose and $1.0 \ mol$ of galactose.

When one mole of lactose is hydrolysed,the hydrolysate contains

Similar Questions

What is glycolysis?

Write a note on the cyclic structure of glucose.

Which of the following is a trisaccharide?

Write the reactions of $D-Glucose$ which cannot be explained by its open-chain structure. How can the cyclic structure of glucose explain these reactions?

Assertion: Glucose and fructose give the same osazone.
Reason: During osazone formation,stereochemistry only at $C_1$ and $C_2$ is destroyed.

Vedclass Test Series

Exam Paper Generator

Online Exam Module