Question

The molecular formula of sucrose is,
$
  A){C_{10}}{H_{22}}{O_{11}} \\
  B){C_{12}}{H_{22}}{O_{11}} \\
  C){C_{13}}{H_{22}}{O_{11}} \\
  D){C_{12}}{H_{22}}{O_{10}}\, \\
 $

Answer 1

Hint: We know that molecular formula comprises chemical symbols for the elements followed by subscripts representing the number of atoms present in each element of the molecule. The formula that indicates the simplest whole number ratio of the atoms present in the compound is called the empirical formula. The molecular formula for a compound could be similar or a multiple of the empirical formula of the compounds.

Complete step by step answer:
We can define disaccharide as two monosaccharides linked together and are broken down into monosaccharides during digestion.
We know that sucrose is an example of common sugar. The structure of sucrose is a molecule with two monosaccharides that are glucose and fructose. Sucrose belongs to disaccharide and is made up of 50% glucose and 50% sucrose.
We can commonly know sucrose as table sugar or cane sugar.
We can extract sucrose from sugar cane or beet sugar.
In plants, sucrose is present in roots, fruits and nectars. It stores energy during the process of photosynthesis.
We can see sucrose in carbohydrates present in fruits, vegetables and grains.
Sucrose is added to candy, ice cream, cereals for breakfast, canned foods, and other sweetened beverages.
The sweetness of sucrose is less than fructose, but higher than glucose.
A molecule of sucrose contains twelve carbon atoms, twenty-two hydrogen atoms and eleven oxygen atoms. The molecular formula of sucrose is ${C_{12}}{H_{22}}{O_{11}}.$
Hence option (B) is correct.

Note:
We must know that the molecules of glucose and fructose are linked through linkages are called glycosidic linkage and bond is known as glycosidic bond. The most common form of carbohydrate that is used to transfer carbon within a plant is sucrose. Sucrose is used to store information and could also be used as sweetener. Sucrose is non-reducing sugar.