Question

Selina’s father was asked to gargle with warm water and a medicated solution. As he was pouring the solution, few drops fell on a food item around. The food item turned blue-black in color. He was surprised but Selina understood what had happened.

i)What was present in the food item which gave the blue-black coloration?

ii)Which chemical was present in the medicated solution that gave the blue-black coloration?

iii) Explain the impact of deficiency of the mentioned food component in an individual.

Answer 1

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