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Question

Which of the following is not true about I4O9?

A
Iodine exists in both +3 and +5 oxidation states
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B
It has a peroxide bond
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C
It reacts with water to give iodine and iodic acid
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D
It exists as a dark yellow solid
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Solution

The correct option is B It has a peroxide bond
I(OIO2)3, tetraiodine nonoxide (I4O9) does not have a peroxide bond. It is a dark yellow solid which decomposes to iodic acid (HIO3) and iodine (I2) when dissolved in water.

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