Multiple choice

Lactose is milk sugar. It is a

  1. mono saccharides

  2. di-saccharide

  3. Polysaccharides

  4. oligo-saccharides

Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

A di-saccharide or biose is the carbohydrate formed when two mono saccharides undergo a condensation reaction which involves the elimination of a small molecule, such as water, from the functional groups only. Like mono saccharides, di-saccharides also dissolve in water, taste sweet and are called sugars,e.g., lactose, maltose etc..

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