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Question

A dilute solution Contains “x” moles of solute “A” in 1 kg of solvent with molal elevation constant kb. The solute dimerises in the solution according to the following equation. The degree of association is (α)
2AA2

The von’t Hoff factor will be


A

i=12α

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B

i=1α2

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C

i=1+α2

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D

i=1+α

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Solution

The correct option is B

i=1α2


A dilute solution Contains “x” moles of solute “A” in 1 kg of solvent with molal elevation constant kb. The solute dimerises in the solution according to the following equation. The degree of association is (α)
2AA2

For association i=1+(1n1)


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