Stoichiometry
In case of a solution (not of a solid in a liquid), whose total volume is less than the sum of the volumes of its components in their pure states, solubility is

Independent of temperature
Increased with decrease in pressure
Unchanged with pressure changes
Increases with rise in pressure

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Stoichiometry
In a binary liquid solution of components A and B, if component A exhibits positive deviation from Raoult's law, then component B

May exhibit either positive or negative deviation from Raoult's law
Exhibits negative deviation from Raoult's law
Obeys Raoult's law
Exhibits positive deviation from Raoult's law

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