Question

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 blue solution changes to green and a brown deposit appears on the iron nails.

a) What type of change is this?

b) Name the brown deposit on the iron nail.

c) Mention the chemical name of green solution.

d) Write a word equation about this activity.

Answer 1

Answer:

chemical changes

corrison

Answer 2

Answer:

a. chemical change

b. copper

c. iron sulphate

Explanation:

d.

Copper sulphate solution (blue)+Iron→Iron sulphate solution (green)+Copper (brown deposit)