Question

In the reaction of solution of copper sulphate with iron nail, speed of reaction increases if we use iron wire instead of iron nail. Which factors do you observe that affects the rate of reaction? Explain

Answer 1

When Iron nail (Fe) kept in Copper sulphate (CuSO4) there takes reaction between them. As Iron is more reactive tha Copper it can replace Copper from CuSO4. Fe + CuSO4 → FeSO4 + Cu CuSO4 is in blue Colour and FeSO4 is in light green colour. So, there will be change in the composition and colour of the solution  (from blue to light green). And decomposition of Copper layer on surface of nail.