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The solubility of iodine in water increa...

The solubility of iodine in water increases in the presence of

A

Alcohol

B

Chloroform

C

Sodium hydroxide

D

Potassium iodide

Text Solution

Verified by Experts

The correct Answer is:
D
Iodine has the least affinity for water and is only slightly soluble in it. However, it dissolves in 10% aq. Solution of KI due to the formation of a complex ion i.e. `I_(3)^(-)`
`I_(2) + Kl hArr KI_(3) ` or `I_(3) + I^(-) hArr I_3^(-)` (complex ion)
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