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In alkaline solution, the following equi...

In alkaline solution, the following equilibria exist
a. `S^(2-)+S rarr S_(2)^(2-)` equilibrium constant `K_(1)`
b. `S_(2)^(2-)+S rarr S_(3)^(2-)` equilibrium constant `K_(2)`
`K_(1)` and `K_(2)` have values `12` and `11`, respectively.
`S_(3)^(2-) rarr S^(2-)+2S`. What is equilibrium constant for the reaction

A

23

B

132

C

1/132

D

`1//32`

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A, B, C
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