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Iodine reaxdily dissolves in KI solution...

Iodine reaxdily dissolves in `KI` solution due to

A

the coversion of `I_(2)` into `I^(-)` ions

B

the formation fo `I_(3)^(+)` ions

C

the formation of `I_(3)^(-)` ions

D

the increase in polarity of the medium

Text Solution

Verified by Experts

The correct Answer is:
3
Linear triatomic iodines ion `(I_(3)^(-))` is formed when `I_(2)` dissolves in an aqueous solution of potassium iodide:
`I_(2)(S)+I^(-) (aq.) rarr I_(3)^(-) (aq.)`
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