Question no. 12.a. Write the chemical name of coating that forms on silver and iron articles when these are exposed to moist air for long.

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Solution

Dear student ,

Silver = silver sulphide , Ag₂S
Iron = Iron oxide or Ferric oxide (rust) , Fe₂O₃.xH₂O

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Question no. 12.a. Write the chemical name of coating that forms on silver and iron articles when these are exposed to moist air for long.

Dear student , Silver = silver sulphide , Ag2S Iron = Iron oxide or Ferric oxide (rust) , Fe2O3.xH2O Regards

Dear student ,

Silver = silver sulphide , Ag₂S
Iron = Iron oxide or Ferric oxide (rust) , Fe₂O₃.xH₂O

Regards