Why does the iron nail becomes reddish brown in colour?

When nail is kept in it, Fe being more reactive than copper, it displaces copper from Copper sulphate and forms Ferrous Sulphate which is greenish blue, and the copper displaces deposits around nails giving it colour of reddish brown.

What happens when iron nails are kept in copper sulphate solution?

When an iron nail is dipped in copper sulphate solution, a brown coating of copper is formed on the surface of iron and the colour of copper sulphate solution changes from blue to light green.

Why does the iron nail become brownish in colour and the colour of copper sulphate solution fades?

The iron nail become brownish in colour and the blue colour of copper sulphate solution fade because when an iron nail dipped in the copper sulphate solution then iron displaces copper from the copper sulphate because iron is more reactive than copper therefore the colour of copper sulphate solution changes.

When an iron nail is dropped in copper sulphate solution the colour of iron nail become brown and the CuSO4 solution fade give reason for this change in colour?

When an iron nail is dipped in copper sulphate solution, a brown coating of copper is formed in the surface of iron and the colour of copper sulphate solution changes from blue to pale green. The reaction shows that iron is more reactive than copper because it displaces copper from the copper sulphate solution.

Which colour is iron sulphate?

The color of ferrous sulphate crystals is green. Ferrous sulphate crystals contain water molecules (FeSO4.

What becomes the colour of iron nails after they have been kept in the blue solution of copper sulphate for about 20 minutes?

Answer: When an iron nail immersed in the solution of copper sulphate than iron displaces copper from the solution of copper sulphate because iron is more reactive than copper. Therefore copper sulphate solution colour changes from blue to pale green.

What colour is iron?

Pristine and smooth pure iron surfaces are mirror-like silvery-gray. However, iron reacts readily with oxygen and water to give brown to black hydrated iron oxides, commonly known as rust.

Why is a brown coating formed on an iron rod when it is dipped in copper sulphate solution for some time illustrate this with a chemical equation?

When a iron rod is kept dipped in copper sulphate solution a brown coating of copper is formed on the surface of iron. It shows that iron is more reactive than copper it replaces copper from CuSO4. CuSO4 is blue in colour and FeSO4 is light green in colour. It is a displacement reaction.

What color are iron nails?

Iron nail is covered with a red-brown coating. The coating is copper metal.

What happens when an iron nail is dipped in copper sulphate?

When an iron nail is dipped in copper sulphate solution, a brown coating of copper is formed in the surface of iron and the colour of copper sulphate solution changes from blue to pale green. The reaction shows that iron is more reactive than copper because it displaces copper from the copper sulphate solution.

What does the brown coating on the iron nail shows?

The brown coating on the iron nail shows that copper is deposited on the iron nail by displacing iron. 2. The greenish colour of the solution in the test tube shows that Fe 2+ ions are present in the solution. 3. This shows that iron is more reactive than copper, as Fe 2+ ions have displaced Cu 2+ ions from copper sulphate solution.

How to remove rust from iron nails?

Clean the iron nails by rubbing with sand paper to remove rust, dust or greasy surface. 2. Keep the control experiment to compare the colour of iron nails and copper sulphate solution. 3. Avoid touching copper sulphate solution or nail dipped in copper sulphate solution as copper sulphate is poisonous.

What happens when iron nails are rubbed with sand paper?

(c) Due to this displacement reaction, the solution which was originally sky blue in colour, turns light green and the iron article is covered with a reddish brown layer of copper. Step 1: Two iron nails are taken and rubbed with a sand paper to make them shining.