Question

Write an experiment for coating an iron key with copper by electroplating method and

prepare a note.​

Answer 1

Answer:

Place the copper strip into the solution, making sure it doesn't touch the key and the solution level is below the alligator clip. An electrical circuit has now formed and current is flowing. Leave the circuit running for 20-30 minutes, or until you are happy with the amount of copper on the key.

Explanation:

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Answer 2

Answer:

four pharmaceutical uses of ammonium chloride are-

•It is used in fertilizers as a nitrogen source.

•It is used in medicine (especially in cough medicine) as an expectorant.

•It is used in glue which helps to bond plywood.

•It is used in Leclanche cells in aqueous solutions.