A house wife does not clean her brass utensils for few days in her kitchen .She finds a greeenish coating on them.What could be the reason? What the green coating is of ?
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Brass is an alloy which is made up of copper metal.
When copper metal is exposed to moisture and air, it forms copper hydroxide and copper carbonate due to the effect of corrosion.
The green coating thus is the copper carbonate which is formed on account of corrosion.
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