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A dilute solution contains 'x' moles of ...

A dilute solution contains 'x' moles of solute A in 1 kg of solvent with molal elevation constant `K_(b)`. The solute dimerises in the solution according to the following equation. The degree of association is (a) :
`2A hArrA_(2)`
The van't Hoff factor will be:

A

I = 1 -2a

B

I = 1 `-a/2`

C

I = 1 `+a/2`

D

I = 1 + a

Text Solution

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The correct Answer is:
b
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