1.

For 1 molal aqueous solution of the following compounds, which one will show the highest freezing point -

Answer»

`[Co(H_(2)O)_(6)]Cl_(3)`
`[Co(H_(2)O)_(5)Cl]Cl_(2).H_(2)O`
`[Co(H_(2)O)_(4)]Cl_(2).2H_(2)O`
`[Co(H_(2)O_(3)Cl_(3)].3H_(2)O`

Solution :Depression of freezing point will be maximum for that solution which will contain maximum number of SOLUTE particles in it. Among the given SOLUTES, (D) will contain minimum number of solute particles in its solution. Hence depression of reezing point will be minimum for the solution of (D), i.e, solution of (D) will exhibit highest freezing point.


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