1.

In moist air, copper corrodes to produce a green layer on the surface. Give reason.

Answer» In moist air, copper reacts with oxygen `O_2` moisture `H_2O` and `CO_2` to produce basic copper corbonate. Which is green in colours.
`2Cu+O_2+H_2O+CO_2toCuCO_3.Cu(OH)_2darr`


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