asked 164k views
2 votes
Iodine turns black when it comes in contact with *

water
carbon dioxide
oxygen
starch

asked
User Tuntable
by
7.9k 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! :)
answered
User Carl Love
by
8.3k points

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