Question
Short note on :Lactose

Answer

$\rightarrow$ It is more commonly known as milk sugar since this disaccharide is found in milk.
$\rightarrow$ It is composed of $ẞ-D-$galactose and $ẞ-D-$Glucose
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$\rightarrow$ The linkage is between $C_1$ of galactose and $C_4$ of glucose.
$\rightarrow$ Free aldehyde group may be produced at $C-1$ of glucose unit, hence it is also a reducing sugar.
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