For   1   molal   aqueous solution of the following compounds, which one will show the…

For 1 molal aqueous solution of the following compounds, which one will show the highest freezing point?
  1. CoH2O3Cl3.3H2O
  2. CoH2O6Cl3
  3. CoH2O5ClCl2.H2O
  4. CoH2O4Cl2Cl.2H2O

Solution

Depression in freezing point ΔTf=i.kf.m

For one molal soloution ; ΔTf∝i

i is least for  [Co(H2O)3Cl3].3H2O ; So ΔTf  is least but freezing point is high.

Asked in: JEE Main 2018 (08 Apr)

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