Which of the following will displace the halogen from a solution of halide ?
A. Chlorine is added to sodium fluoride solution
B. Bromine is added to sodium iodide solution
C. Bromine is added to sodium chloride solution
D. Chlorine is added to potassium chloride solution

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1 Answers

Correct Answer - B
Bromine displaces iodine from sodium iodide solution because it is more powerful oxidising agent than iodine due to greater reduction potential value (+1 .06 V) than iodine (+0.5 V). In general, a halogen of low atomic number will oxidise the halide ion of higher atomic number.

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