Science, asked by aseemRanganathan, 1 year ago

Paheli bought a statue made of copper. To her surprise it acquired
a dull green coating after a couple of months. Explain the reason


NCERT Class VIII
Science - Exemplar Problems

Chapter 4. Materials: Metals and Non-Metals

Answers

Answered by kingofself
203

Answer:

  • The statue made of copper will get a dull green coating after a couple of months due to the oxidation of copper and other chemical reactions.
  • When exposed to air and under moisture, copper reacts with water and oxygen.
  • The copper first oxidizes to copper oxide and then undergoes further changes to finally form hydrated copper carbonate which is in green colour. This green colour layer is called as the patina.
Answered by Anonymous
54

Answer:

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