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Wet corrosion and its mechanism
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The rate of dry corrosion is fast as compared to wet corrosion.
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1 point
True
False
Water and two different metals when comes in contact with each other, the type of corrosion is
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1 point
dry corrosion
simple corrosion
wet corrosion
water corrosion
In wet corrosion, the iron tank contains acidic water acts as___
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1 point
Simple metal
anode
cathode
electron acceptor
Fe + O2 + H20--> Fe2+ + 2OH- or Fe(OH)2. The Product of this reaction is____
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1 point
True
False
In oxygen absorption mechanism, ___ electrons are transfered from iron to form rust.
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1 point
2
1
3
4
Metal whose corrosion takes place is
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1 point
active metal
an anode
passive metal
cathode
both a and b
Formula of rust is
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1 point
Fe2O3.xH2O
Fe3O4.2H2O
FeCO3
Fe(OH)2
The following diagram is of ___
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1 point
wet corrosion mechanism
hydrogen evolution mechanism
oxygen absorption mechanism
dry corrosion mechanism
The following diagram is of ___
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1 point
wet corrosion mechanism
hydrogen evolution mechanism
oxygen absorption mechanism
dry corrosion mechanism
In Oxygen Absorption Mechanism, small scratch on surface of metal becomes ___
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1 point
anodic
cathodic
large
small
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