The boiling point of a solution of \( 5 \mathrm{~g} \) sulphur in \( 100 \mathrm{~g} \mathrm{CS}...

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The boiling point of a solution of \( 5 \mathrm{~g} \) sulphur in \( 100 \mathrm{~g} \mathrm{CS} 2 \) is \( 0.5^{\circ} \mathrm{C} \) above pure solvent. If the \( K_{b} \) of \( \mathrm{CS}_{2} \) is \( 2.56 \mathrm{~K} \) molality \( { }^{-1} \) then the atomicity of sulphur in this solvent is
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