A) chloroform
B) potassium iodide
C) carbon disulphide
D) sodium thiosulphate
Correct Answer: B
Solution :
The solubility of\[{{I}_{2}}\]in water increases by the addition of\[KI\]due to formation of polyhalide ion, i.e.,\[I_{3}^{-}\]. \[KI+{{I}_{2}}\xrightarrow[{}]{{}}K{{I}_{3}}\]
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