The solubility of a specific non-volatil...

The solubility of a specific non-volatile salt is 4 g in 100 g of water at `25^@C`. If 2.0 g, 4.0 g and 6.0 g of the salt added to 100 g of water at `25^@C`, in system X, Y and Z. The vapour pressure would be in the order :

`X lt Y lt Z`

`X gt Y gt Z`

`Z gt X = Y`

`X gt Y = Z`

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