Stoichiometry
Raoult's law is not applicable to the

Both B & C
Solutes which dissociate or associate in the particular solution
Concentrated solutions
Solutions containing non-volatile solute

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Stoichiometry
The heat capacity of a substance is

Greater for liquid state than for solid state
Lower for liquid state than for gaseous state
Higher for solid state than for liquid state
Equal for solid and liquid states below melting point

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