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Compound A gives D-Galactose and D-Glucose on hydrolysis.

Question:

Compound A gives D-Galactose and D-Glucose on hydrolysis. The compound $\mathbf{A}$ is :

  1. Amylose

  2. Sucrose

  3. Maltose

  4. Lactose


Correct Option: , 4

Solution:

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

Lactose : $\beta-\mathrm{D}-$ Galactose $+\beta-\mathrm{D}-$ Glucose

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