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Which of the following statements are co...

Which of the following statements are correct for van't Hoff factor `'i'` for a solution of weak electrolyte `A_(x)B_(y)`?

A

`o=1-a+Xa+Ya`

B

`igt1` at normal dilution

C

`i` increases more rapidly with dilution and attains a limiting alue of `(x+y

D

The increaes in `'i'` with dilution is due to increase in molality of solution with dilution

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`i=1+(x+y-1)alpha`
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