Question

What are the apparatus for activity 1.9 chapter- chemical reaction and equation from class 10 NCERT Book​

Answer 1

Answer:

Activity 1.9 (Experiment):

Aim: To show displacement reaction

Apparatus: two iron nails, sand paper, copper sulphate solution, thread and two test tubes.

Procedure: Take two iron nails and clean them by rubbing them with sand paper. Take two test

tubes marked as (A) and (B). In each test tube, take about 10 ml copper sulphate solution.

Tie one iron nail with a thread and immerse it carefully in the copper sulphate solution in test tube A

for about 20 minutes. Keep one iron nail aside for comparison.

After 20 minutes, take out the iron nail from the copper sulphate solution. Compare the intensity of the blue colour of copper sulphate solutions in the test tubes (A) and (B). Also, compare the colour of the iron nail dipped in the copper sulphate solution with the one kept aside.

Observation: the iron nail dipped in the copper sulphate solution in test tube A becomes brownish in colour and the blue colour of copper sulphate solution fades in test tube A. While the blue colour of copper sulphate solution in test tube B remains the same.

Conclusion: iron has displaced or removed another element, copper, from copper sulphate solution in test tube A. This reaction is known as displacement reaction.

Fe(s) + CuSO4(aq) → FeSO4(aq) + Cu(s)

[copper sulphate] [Iron sulphate]

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Answer 2

Answer Displacement reaction activity 1.9

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