A) \[C{{l}^{-}}\]
B) \[C{{l}_{2}}\]
C) \[I_{3}^{-}\]
D) \[{{I}_{2}}\]
Correct Answer: B
Solution :
All the halogens act as strong oxidising agents since, they have a strong tendency to attract electrons. The oxidising power decreases from F to I. ie, \[{{F}_{2}}>C{{l}_{2}}>B{{r}_{2}}>{{I}_{2}}\]. So, \[C{{l}_{2}}\] will displace Br~ and F ions from their solutions. \[C{{l}_{2}}+2B{{r}^{-}}\xrightarrow{{}}B{{r}_{2}}+2C{{l}^{-}}\].
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