Question

A student add lead and silver to two different test tubes containing an equal amount of copper sulphate solution . The student observed that the colour of solution in the test tube with lead changes . Explain the change of colour in the solution in details.​

Answer 1

Answer: Two test tubes, two iron nails, measuring cylinder (50 mL), laboratory stand with clamp, test tube ... colour of iron nail dipped in copper sulphate solution with the one ... Infer from your observations about the changes in colours of copper sulphate solution ... 2. In another test tube, take 3 mL of barium chloride and label it as B.

Explanation:

Answer 2

The color of the solution changes when a lead is added to the copper sulfate solution.

Explanation:

• When we add lead to the copper sulfate solution we observe different chemical reactions that take place.
• We observe a change in color and a new form of substance that has been formed after the reaction.
• The reaction between the two substances is a displacement reaction.
• It is the reaction in which a more reactive substance is replaced with a less reactive substance.
• Lead is initially white in color, and copper sulfate solution is blue in color.
• They will form a colorless solution on displacement reaction.

$CuSO_{4} + Pb$ ⇒$PbSO_{4} + Cu$