Question

When an iron nail is placed with copper (ll) sulphate solution, then a coat of copper appears on the nail. which colour turns on the solution that time?

pale blue
pale green
light green
light blue​

Answer 1

Question:

When an iron nail is placed with copper (ll) sulphate solution, then a coat of copper appears on the nail. which colour turns on the solution that time?

Answer:

pale blue

pale green

light green

light blue

Answer 2

Answer:

the correct answer will be pale blue