Question

3. A powdery substance or paste of food item is taken in a test tube and after that a few drops of copper sulphate solution and then caustic soda solution were added, on shaking the test tube, it was observed that the solution turned violet coloured after few minutes due to the presence of which component? ' *​

Answer 1

Answer:

Correct option is

B

ii, i, iv, iii

The correct option is b) ii, i, iv, iii.