Question

A small quantity of powder food sample is taken in a test tube. Few drops of a blue coloured solution were added to it. The mixture was then heated slowly. The blue coloured paper turned orange on hearing.
1) Indentify the blue coloured solution.
2) Which nutrient is present in the food sample?​

Answer 1

Answer:

i don't know the answer of the first part but the second part's answer might be starch

Explanation:

Answer 2

First part is blue vitriol solution and second is starch