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For a concentrated solution of a weak electrolyte (K eq = equilibrium constant) A 2 B 3 of concentration ‘c’, the degree of dissociation ‘ α ’ is

1. 5 1 4 eq c 5 K ⎟ ⎟ ⎠ ⎞ ⎜ ⎜ ⎝ ⎛
2. 5 1 4 eq c 108 K ⎟ ⎟ ⎠ ⎞ ⎜ ⎜ ⎝ ⎛
3. 5 1 2 eq c 25 K ⎟ ⎟ ⎠ ⎞ ⎜ ⎜ ⎝ ⎛
4. 5 1 5 eq c 6 K ⎟ ⎟ ⎠ ⎞ ⎜ ⎜ ⎝ ⎛

Correct answer: 5 1 4 eq c 108 K ⎟ ⎟ ⎠ ⎞ ⎜ ⎜ ⎝ ⎛

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