Q. Copper substances when exposed to air gains a green coating due to the formation of:

  • (A) Cu(NO3 )2
  • (B) CuSO4
  • (C) CuCO3 Cu(OH)2
  • (D) CuO
✅ Correct Answer: (C) CuCO3 Cu(OH)2

Published by Ram Sharma ⭐ 193.88K Points at 29-Mar-2022 05:31 pm in Chemistry

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