Question

Rishi is experimenting with a blue coloured solution (X) in a beaker. By mistake, a shaving blade fell into the beaker. After some time he found that the colour of the solution in the beaker changed to green (Y). Identify X and Y. What is the reason behind the change in colour?

Answer 1

Halochromism – color change caused by a change in pH. Metallochromism – color change caused by metal. X is the normal Halochromism and Y is the Halochromism after the chemical reaction that is metallochromism