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Which of the following reaction is not ...

Which of the following reaction is not feasible?

A

`2KI+Br_(2)rarr2KBr+I_(2)`

B

`2KBr+I_(2) rarr 2KI+Br_(2)`

C

`2KBr+Cl_(2)rarr2KCl+Br_(2)`

D

`2H_(2)O+2F_(2)rarr4HF+O_(2)`

Text Solution

Verified by Experts

The correct Answer is:
2
A halgen `(X_(2))` of lower atomic number can displace other halgons of higher atomic number from their salts `(X)^(-)` thus following reaction:
`2KBr+I_(2)rarr2KI+Br_(2)`
is not possible `E_(I_(2)//I^(-))^(Ɵ) lt E_(Br_(2)//Br^(-))^(Ɵ)`
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