Among the following types of sugar, which one is the sweetest sugar of all?

Options :
  1. Sucrose
  2. Glucose
  3. Fructose
  4. Lactose
Answer and Explanation :-

Answer: Option 3


Simple sugars are carbohydrates. Glucose and fructose are monosaccharides and sucrose is a disaccharide of the two combined with a bond. Glucose and fructose have the same molecular formula (C6H12O6) but glucose has a six member ring and fructose has a five member ring structure. Fructose is known as the fruit sugar as its main source in the diet is fruits and vegetables. Honey is also a good source. Glucose is known as grape sugar, blood sugar or corn sugar as these are its richest sources. Sucrose is the sugar we know as sugar or table sugar. Typically extracted as cane or beet sugar. If sucrose is treated with acid or heat, it hydrolyzes to form glucose and fructose. This mixture of sucrose, glucose and fructose is also called invert sugar. Nutritionally, these sugars are the same as they all provide 4 Cal/g. This is true for starch and other digestible carbohydrates too. Lactose is a disaccharide sugar derived from galactose and glucose that is found in milk. Lactose makes up around 2-8% of milk (by weight), although the amount varies among species and individuals, and milk with a reduced amount of lactose also exists. It is extracted from sweet or sour whey. It has a formula of C12H22O11. Of the four sugars, fructose is the sweetest and lactose the least sweet.

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