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A solute S undergoes a reversible trimerization when dissolved in a certain solvent . The boiling point elevation of its `0.1` molal solution was found to be identical to be boiling point elevation in case of a `0.08` molal solution of a solute which neither undergoes association nor dissociation. To what percent had the solute S undergoes trimerization ?A. 0.3B. 0.4C. 0.5D. 0.6

Answer» Correct Answer - A
`underset(1)(3S)hArrunderset0(S_3)`
`1-alpha " " alpha/3implies i=1-(2alpha)/3`
Now 0.1 `(1-(2alpha)/3)=0.08 implies alpha=0.3` Hence 30% trimerization


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