MCQ
The copper articles turn green when kept for long due to
Image
  • A
    Corrosion
  • B
    Rusting
  • C
    Precipitation
  • D
    Rancidity

Answer

(a) Corrosion
Explanation: The copper articles turn green when kept for long due to corrosion in which metal is eaten up gradually by the
action of air, moisture or a chemical (such as an acid) on their surface.

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