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Which of the following is water-soluble?
A
Vitamin E
B
Vitamin K
C
Vitamin A
D
Vitamin B
Detailed Solution
Vitamins are classified into two groups on the basis of their solubility.
Fat soluble vitamins: vitamins A, D, E and K. They are soluble in fats and oils but insoluble in water, and are stored in the liver and adipose tissue.
Water soluble vitamins: the B group vitamins and vitamin C. They must be supplied regularly in the diet because they are readily excreted in urine and cannot be stored in the body (except vitamin $B_{12}$).
So vitamin B is water soluble, whereas vitamins A, E and K are water insoluble.
Fat soluble vitamins: vitamins A, D, E and K. They are soluble in fats and oils but insoluble in water, and are stored in the liver and adipose tissue.
Water soluble vitamins: the B group vitamins and vitamin C. They must be supplied regularly in the diet because they are readily excreted in urine and cannot be stored in the body (except vitamin $B_{12}$).
So vitamin B is water soluble, whereas vitamins A, E and K are water insoluble.