1. What happens to the nail in test tube A? test tube B? and test tube C?
2. Which of the nails in the test tube exhibit rusting?
3. Which of the nails did not rust?
4. What are the conditions needed for the iron nail to rust?
2. Which of the nails in the test tube exhibit rusting?
3. Which of the nails did not rust?
4. What are the conditions needed for the iron nail to rust?
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Answer:
1. in the test tube 2 iron nail is not rusted due cut off supply of air by a layer of oil.
2. in test tube 1 iron nail gets both air and moisture which is required for rusting.
3. in the test tube 3 iron nail is not rusted because of the calcium chloride which is moisture absorber. hence nail would not get moisture for the rusting.
Explanation:
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