1.

When a copper object is exposed to moist air for a long time,then a green coating is formed on its surface. (a) What is the material of the green coating ? (b) State whether the green coating is acidic or basic.

Answer»

When a copper object is exposed to moist air for a long time,then a green coating is formed on its surface.

(a) What is the material of the green coating ?

(b) State whether the green coating is acidic or basic.



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