1.

Which of the following reactions will not occur spontaneously?

Answer»

`F_(2)+2Cl^(-)rarr 2F^(-)+Cl_(2)`
`I_(2)+2Br^(-)rarr 2I^(-)+Br_(2)`
`Br_(2)+2I^(-)rarr 2Br^(-)+I_(2)`
`2I^(-)+Cl_(2)^(-) rarr 2Cl^(-)+I_(2)`

Answer :B


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