From reactivity series you studied that copper, silver and gold show no reaction with acids,
then how did they make silver solution?
Answers
Answer:
Copper and silver react with acid so slowly that , at a test tube reaction level, we cannot see anything happening.
We know, or can deduce that copper and silver do react, because they both tarnish when left exposed to the air. Copper goes green eventually and silver goes black. (This is why we have to polish silverware, and copper cladding on rooves turns green).
Silver will react with hot, concentrated acids, at a level that is useful in the manufacturing process. So, just place your silver in boiling concentrated sulphuric acid.
Because silver does form salts, it can be found in rocks as silver sulphide, which can be chemically leached or smelted to get the silver. If you use the silver sulphide as a starting point, it is fairly simple to make other silver salts.
Gold CAN be made to form salts, by dissolving in a mixture of concentrated nitric and hydrochloric acids, also in alkaline cyanide compounds, which is how it is mined (sometimes), also it dissolves in mercury, for extraction in mining.