The solubility of iodine in water increases in the presence of
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a
Alcohol
b
Chloroform
c
Sodium hydroxide
d
Potassium iodide
answer is D.
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Detailed Solution
Iodine has the least affinity for water and is only slightly soluble in it. However, it dissolves in 10% aq. solutionof KI due to the formation of a complex ion i.e. I3−.I2+KI⇌KI3 or I2+I−⇌I3− (complex ion)