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Class 12
Chemistry :-NCERT Solution - Biomolecules

Exercise2 Question 19
How are vitamins classified? Name the vitamin responsible for thecoagulation of blood.


Answer:

On the basis of their solubility in water or fat, vitamins are classified into two groups.

 

(i) Fat-soluble vitamins: Vitamins that are soluble in fat and oils, but not in water, belong to this group. For example: Vitamins A, D, E, and K

 

(ii) Water-soluble vitamins:Vitamins that are soluble in water belong to this group. For example: B group vitamins (B1, B2, B6, B12, etc.) and vitamin C

However, biotin or vitamin H is neither soluble in water nor in fat.

Vitamin K is responsible for the coagulation of blood.