The feasible reaction, amongst the following, is 
1.  \(2KCl + Br_2 \rightarrow 2KBr + Cl_2\)
2. \(2KF + I_2 \rightarrow 2KI + F_2\)
3. \(2 KClO_3 + I_2 \rightarrow 2KIO_3 + Cl_2\)
4. \(2KIO_3 + Cl_2 \rightarrow 2KClO_3 + I_2\)
Subtopic:  Electrochemical Series |
From NCERT
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Given below are some reactions. The reaction which is not feasible is
1. \(2KClO_3 + I_2 \rightarrow 2KIO_3 + Cl_2 \uparrow\)
2. \(2KCl + I_2 \rightarrow 2KI + Cl_2 \uparrow\)
3. Both 1 and 2 are not feasible 
4. \(2KI + Cl_2 \rightarrow 2KCl + I_2\)
Subtopic:  Electrochemical Series | Electrode & Electrode Potential |
From NCERT
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