Question

Read the passage given below and answer the questions that/allow.Passage-1 Take a small quantity of copper sulphate crystals and dissolve it in a small quantity of water to obtain blue coloured solution. Add a few drops of dilute sulphuric acid. Now, put 3-5 medium sized iron nails in it. Soon the colour of blue solution changes to green and a brown deposit appears on the iron nails. Change of colour from blue to green in above activity represents: Q(19) (i * 2 points a) Physical change b) Chemical change c) Both of the above d) None of these​

Answer 1

Answer:

Iron sulpate

Explanation:

hope this helped!

Answer 2

Answer:

chemical change b

this is the correct answer