Everyday Science
The formation of patina on copper results in which of the following colours?
Magenta
White
Red
Green
Green
The formation of patina on copper is similar to the formation of rust on iron. Both happen when oxygen in the air interacts with the metal atoms in the presence of water. Copper reacts with oxygen that is in the air, resulting in copper dioxideAs copper experiences natural or human-induced corrosive attack, its color changes from the iridescent, golden red normally associated with pure copper to a deep brown and, finally, to hues of blue and green.
Green The formation of patina on copper is similar to the formation of rust on iron. Both happen when oxygen in the air interacts with the metal atoms in the presence of water. Copper reacts with oxygen that is in the air, resulting in copper dioxideAs copper experiences natural or human-induced corrosive attack, its color changes from the iridescent, golden red normally associated with pure copper to a deep brown and, finally, to hues of blue and green.
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B. not uniform
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B. 1/5th of body
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D. Copper
The energy stored in coal is
A. kinetic energy
B. potential energy
C. chemical energy
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A human breath per minute is
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C. 15-20 times
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Symbol of Copper is
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B. Cl
C. Co
D. Cu
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