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Chlorine undergoes disproportionation in alkaline medium as shown below : aCl 2(g) + − ) aq ( bOH → − ) ( aq cClO + − ) aq ( dCl + eH 2 (O) (l) The values of a, b, c and d in a balanced redox reaction are respectively :

1. 2, 4, 1 and 3
2. 1, 2, 1 and 1
3. 2, 2, 1 and 3
4. 3, 4, 4 and 2

Correct answer: 1, 2, 1 and 1

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