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When an iron nail gets rusted, iron oxide is formed
- a)without any change in the weight of the nail
- b)with decrease in the weight of the nail
- c)with increase in the weight of the nail
- d)without any change in colour or weight of the nail
Correct answer is option 'C'. Can you explain this answer?
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Most Upvoted Answer
When an iron nail gets rusted, iron oxide is formeda)without any chang...
Explanation:
When an iron nail gets rusted, it reacts with oxygen from the air and forms iron oxide. This reaction is known as oxidation.
The chemical formula for rust is Fe2O3.xH2O, where x represents the number of water molecules attached to each iron oxide molecule.
When iron reacts with oxygen to form rust, the weight of the nail increases because the new compound (iron oxide) is heavier than the original iron nail.
Factors that affect the rate of rusting include:
- Exposure to moisture: The presence of water is necessary for rusting to occur, so if the nail is kept dry, it will not rust as quickly.
- Exposure to oxygen: The more oxygen available, the faster the rusting process will occur.
- Presence of salt: Salt can speed up the rusting process because it helps to conduct electricity, which accelerates the oxidation reaction.
Conclusion:
In summary, when an iron nail gets rusted, the weight of the nail increases due to the formation of iron oxide. This reaction occurs when iron is exposed to moisture and oxygen, and the presence of salt can speed up the process.
When an iron nail gets rusted, it reacts with oxygen from the air and forms iron oxide. This reaction is known as oxidation.
The chemical formula for rust is Fe2O3.xH2O, where x represents the number of water molecules attached to each iron oxide molecule.
When iron reacts with oxygen to form rust, the weight of the nail increases because the new compound (iron oxide) is heavier than the original iron nail.
Factors that affect the rate of rusting include:
- Exposure to moisture: The presence of water is necessary for rusting to occur, so if the nail is kept dry, it will not rust as quickly.
- Exposure to oxygen: The more oxygen available, the faster the rusting process will occur.
- Presence of salt: Salt can speed up the rusting process because it helps to conduct electricity, which accelerates the oxidation reaction.
Conclusion:
In summary, when an iron nail gets rusted, the weight of the nail increases due to the formation of iron oxide. This reaction occurs when iron is exposed to moisture and oxygen, and the presence of salt can speed up the process.
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Community Answer
When an iron nail gets rusted, iron oxide is formeda)without any chang...
Correct answer is option c.weight of nail will increase because when iron react with oxygen it forms iron oxide and the mass of oxygen also added in it.so weight increases.
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When an iron nail gets rusted, iron oxide is formeda)without any change in the weight of the nailb)with decrease in the weight of the nailc)with increase in the weight of the naild)without any change in colour or weight of the nailCorrect answer is option 'C'. Can you explain this answer?
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