Smita has been collecting silver coins and copper coins one day she observed a black coaling on silver coins and green coaling of copper coins.She was amazed to see that and ask her mother about this .Her mother told her that this is due to attack of air and moisture on them . (a) Writer the chemical name of black and green coating . (b) What kind of qualities are shown by his mother.
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(A) the chemical name for this is rusting
(B)Rusting occurs on metals due to exposure of air and moisture amd changes the colour of the metal .
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(B)Rusting occurs on metals due to exposure of air and moisture amd changes the colour of the metal .
Hope this helped you .plz add it as the brainliest if u liked it. Thank youu
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