1. With reference to the following list, which of the statements is true? The following is a list of some of the metals in the galvanic series in their relative order: - Anode end - Tin - Zinc - Copper - Aluminium - Nickel - Cadmium - Titanium - Mild Steel - Platinum - Cast Iron - Cathode End ¨ copper is more corrodible than mild steel if they are in contact ¨ aluminium and nickel together have greater corrosion potential than aluminium and tin ¨ platinum is the most corrodible metal ¨ zinc is the least corrodible metal
Science behind corrosion-test
Corrosion is defined as an activity that transforms refined metals into more chemically stable forms such as oxide, hydroxide, carbonate, or sulfide. It refers to the slow decomposition of things (typically metals); thanks to chemical and/or electrochemical reactions with their surroundings. Corrosion engineering is the science of preventing and controlling corrosion.
Corrosion
Corrosion is defined as an activity that transforms refined metals into more chemically stable forms such as oxide, hydroxide, carbonate, or sulfide. It refers to the slow decomposition of things (typically metals); thanks to chemical and/or electrochemical reactions with their surroundings. Corrosion engineering is the science of preventing and controlling corrosion.
1. With reference to the following list, which of the statements is true?
The following is a list of some of the metals in the galvanic series in their relative order:
|
- Anode end |
- Tin |
|
- Zinc |
- Copper |
|
- Aluminium |
- Nickel |
|
- Cadmium |
- Titanium |
|
- Mild Steel |
- Platinum |
|
- Cast Iron |
- Cathode End |
¨ copper is more corrodible than mild steel if they are in contact
¨ aluminium and nickel together have greater corrosion potential than aluminium and tin
¨ platinum is the most corrodible metal
¨ zinc is the least corrodible metal
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