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Question
Food cans are coated with tin and not with zinc because ______.
Options
zinc is costlier than tin
zinc has a higher melting point than tin
zinc is more reactive than tin
zinc is less reactive than tin
MCQ
Fill in the Blanks
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Solution
Food cans are coated with tin and not with zinc because zinc is more reactive than tin.
Explanation:
Zinc is more reactive than tin (zinc is above tin in the reactivity series), so it will react with organic acids (present in food) to form poisonous compounds. To avoid this, food cans are coated with tin and not with zinc.
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