Question

why does the ethanol change colour?​

Answer 1

Answer:

Explanation:

Iodine solution is used to test leaves for the presence of starch. You need to: ... add the leaf to boiling ethanol in a water bath for a few minutes (the boiling ethanol dissolves the chlorophyll and removes the green colour from the leaf - it turns white so it is easy to see the change in colour)

Answer 2

Ethanol change color because ethanol gets oxidized to form ethanoic acid whose color will change from orange to green.

Explanation:

• The ethanol will undergo an oxidation reaction where ethanoic acid is formed which will result in the formation of chromium disulphite.
• The compound will release two hydrogen atoms from the ethanol and will result in the color change.
• Ethanol will be oxidised with the help of acidified sodium dichromate which will then produce the compound chromium disulphite which indicates its presence through a green color.

To know more:

1) What is ethanol?.......

https://brainly.in/question/1121355.

2) Properties of ethanol

https://brainly.in/question/6105323