Which of the following will displace the halogen from the solution of the halide?
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a
Br2 added to NaI
b
Br2 added to NaCl
c
Cl2 added to KCl
d
Cl2 added to NaF
answer is A.
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Detailed Solution
Lighter halogen is a stronger oxidant. Heavier halide is less stable, acts as a reducing agent and is easily oxidised.hence Br2 will displace the iodine from the solution of the sodium iodide