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The reactions of iron nail with copper s...

The reactions of iron nail with copper sulphate solution is `………….` reaction.

A

Combination

B

Decomposition

C

Displacement

D

Double displacement

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The reaction of iron nail with copper sulphate solution is ………….. Reaction.

Apparatus: Copper wire, iron nail, beaker or big test tube, etc. Chemicals: Aqueous solutions of ferrous sulphate and copper sulphate. Procedure: i. Take a clean copper wire and a clean iron nail. ii. Dip the copper wire in ferrous sulphate solution and the iron nail in copper sulphate solution. iii . Keep on observing continually at a fixed interval of time. What is the type of the reaction?

Apparatus: Copper wire, iron nail, beaker or big test tube, etc. Chemicals: Aqueous solutions of ferrous sulphate and copper sulphate. Procedure: i. Take a clean copper wire and a clean iron nail. ii. Dip the copper wire in ferrous sulphate solution and the iron nail in copper sulphate solution. iii . Keep on observing continually at a fixed interval of time. In which test tube a reaction has taken place?

Apparatus: Copper wire, iron nail, beaker or big test tube, etc. Chemicals: Aqueous solutions of ferrous sulphate and copper sulphate. Procedure: i. Take a clean copper wire and a clean iron nail. ii. Dip the copper wire in ferrous sulphate solution and the iron nail in copper sulphate solution. iii . Keep on observing continually at a fixed interval of time. How did you recognize that a reaction has taken place?

What changes in the colour of iron nails and copper sulphate solution do you observe after keeping the iron nails dipped in copper sulphate solution for about 30 minutes?