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If 0.1 m aqueous solution of calcium pho...

If `0.1` m aqueous solution of calcium phosphate is 80% dissociated then the freezing point of the solution will be (`K_f` of water = `1.86K kg mol^(-1))`

A

`-0.78`°C

B

`-1.25`°C

C

`-1.75`°C

D

`-2.5`°C

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