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  3. Chemistry
  4. Compound A gives D-Galactose and D-Glucose on hydrolysis. The compound A is :

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Q. Compound $A$ gives $D$-Galactose and $D$-Glucose on hydrolysis. The compound $A$ is :

JEE MainJEE Main 2021Biomolecules

Solution:

Lactose : It is a disaccharide of $\beta-D$-Galactose and $\beta-D$-Glucose with $C_{1}$ of galactose and $C_{4}$ of glucose link.
Lactose : $\beta$-D-Galactose $+\beta-$ D-Glucose