MCQ
Which of the following is not a disaccharide?
- ACane sugar
- ✓Raffinose
- CLactose
- DMaltose
✓
Answer
Correct option: B.
Raffinose
Cane sugar contains glucose and fructose so it is a disaccharide.
Lactose contains glucose and galactose so it is a disaccharide.
Maltose contains glucose and glucose so it is a disaccharide.
Raffinose contains $1$ unit of glucose$, 1$ unit of fructose and $1$ unit of galactose so it is not a disaccharide. It is a trisaccharide.
Lactose contains glucose and galactose so it is a disaccharide.
Maltose contains glucose and glucose so it is a disaccharide.
Raffinose contains $1$ unit of glucose$, 1$ unit of fructose and $1$ unit of galactose so it is not a disaccharide. It is a trisaccharide.
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