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InterviewSolution
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"Iron nails rust in test tube A, but, iron nails do not rust in test tubes B and C." Explain it |
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Answer» Solution : It is observed in activitythat IRON nails kept in TEST tube A are EXPOSED to both air and water. Hence, iron nails rust in test tube A. In the test tube B, the iron nails are exposed to water only but not to air. Iron nails in test tube C are exposed to dry air only and not to water. Hence, iron nails do not rust in test tubes B and C. Remember: For rusting, metal must be exposed to both air and water (MOISTURE). |
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