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Iodine turns black when it comes in contact with * water carbon dioxide oxygen starch
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2 votes
Iodine turns black when it comes in contact with *

water
carbon dioxide
oxygen
starch

User Tuntable
by
4.7k points

1 Answer

1 vote
The answer is starch. When iodine comes in contact with starch a blue-black color appears. I hope this helps! :)
User Carl Love
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