Activity 1.9 Ncert Science class 10

Activity 1.9 Ncert Science class 10

Brief Procedure:

Activity 1.9 asks us to dip iron nails in a copper sulphate solution and check the colour of the solution.

activity 1.9 class 10 scienceObservation: 

Colour of copper solution fades and nail becomes brown.

Explanation: 

Iron in nail displaces copper from the copper sulphate solution. As a result, solution fades in colour.

This displacement reaction results in the formation of elemental copper. Elemental copper deposits on the nail and impart a brown colour to the nail.

CuSO4(aq) + Fe(s) ——-> FeSO4(aq) + Cu(s)

Note: The faded blue apperance later change to green colour because ferrous sulphate is green.

Next: Double Displacement reaction between Sodium sulphate and Barium chloride: Activity 1.10.

Read also:

Decomposition of silver chloride in sunlight. Activity 1.8.

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