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Iron (Fe) : "Rust". It is brown in colour. The compound is Fe_2O_3.xH_2O

Copper (Cu) : It is blue-green/greenish blue in colour. The compound is CuCO_3.CuOH_2

Silver (Ag) : "Tarnishing". It is dark grey in colour. The compound is Ag_2S
5 4 5
Thankyou for answer, one more synthetic items at home and identify the resins in them
Its urgent thankyou
I don't know, sorry for that.
Answer me for first another 5 metals, colour,compound I am waiting
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