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Question

The depression in freezing point for 0.01m aqueous solution of Kx[Fe(CN)6] is 0.0744K. The motal depression constant for solvent is 1.86K kg mol1. If the solute undergoes complete dissociation, what is the correct molecular formula for the solute?

A
K2[Fe(CN)6]
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B
K3[Fe(CN)6]
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C
K[Fe(CN)6]
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D
K4[Fe(CN)6]
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