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A solution of 1.25 g of 'P' in 50g of wa...

A solution of 1.25 g of 'P' in 50g of water lowers freezing point by `0.3^@C`. Molar mass of 'P' is 94. `K_f(water)` is 1.86 K kg `mol^(-1). The degree of association of 'P' in water is [Assume dimerisation of P]

A

`80%`

B

`60%`

C

`65%`

D

`75%`

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The correct Answer is:
A
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