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The freezing point of a solution contain...

The freezing point of a solution containing 0.1g of `K_3[Fe(CN)_6]` (Mol. Wt. 329) in 100 g of water (`K_f =1.86K kg mol^(−1)` ) is:

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The correct Answer is:
3
Mass of Benzene = `33 xx 0.877` g
Mass of benzene `=(28.941)/78 = 0.371`
Mass of hexane `=187 xx 0.66 = 123.42`g
`m=(0.371 xx 1000)/(123.42) = 3.006`
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