Q16Multiple choice
If copper is kept open in air, it slowly loses its shining brown surface and gains a green coating. It is due to the formation of
- (a)CuSO4
- (b)CuCO3
- (c)Cu(NO3)2
- (d)CuO
Show answer
(b) CuCO3
If copper is kept open in air, it slowly loses its shining brown surface and gains a green coating. It is due to the formation of
(b) CuCO3