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Questions and Answers
Oxygen gas is the largest component of the atmosphere.
Oxygen gas is the largest component of the atmosphere.
True (A)
Gases like H2S, NH3, and NO2 are present in large amounts in the atmosphere.
Gases like H2S, NH3, and NO2 are present in large amounts in the atmosphere.
False (B)
Metal corrosion occurs only if the film is porous.
Metal corrosion occurs only if the film is porous.
False (B)
The mechanism of metal corrosion by oxygen involves the adsorption of 2 molecules on the metal surface.
The mechanism of metal corrosion by oxygen involves the adsorption of 2 molecules on the metal surface.
Metal corrosion stops if the film is non-porous and well-adhered.
Metal corrosion stops if the film is non-porous and well-adhered.
Metal oxide is formed by the union of metal ions and oxygen ions during the corrosion process.
Metal oxide is formed by the union of metal ions and oxygen ions during the corrosion process.
Oxygen gas is the only gas present in large amounts in the atmosphere.
Oxygen gas is the only gas present in large amounts in the atmosphere.
Metal corrosion by oxygen involves the formation of metal oxide by the union of metal ions and oxygen ions.
Metal corrosion by oxygen involves the formation of metal oxide by the union of metal ions and oxygen ions.
The mechanism of metal corrosion by oxygen involves the loss of electrons by the metal atom.
The mechanism of metal corrosion by oxygen involves the loss of electrons by the metal atom.
Metal oxide is formed by the dissociation of an O2 molecule into atoms.
Metal oxide is formed by the dissociation of an O2 molecule into atoms.
