Does Alloying Element B Increase the Melting Point of Element A?

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cruz_johann
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A and B are completely soluble in the liquid state but completely insoluble in the solid state. Will A, alloyed with a small amount of B, have a higher melting point than pure A? Explain.
 

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cruz_johann said:
A and B are completely soluble in the liquid state but completely insoluble in the solid state. Will A, alloyed with a small amount of B, have a higher melting point than pure A? Explain.
What would happen to the alloy constituents (elements) upon cooling? Note - the problem states "small amount of B" in A.
 
Its a homework question given to us. No more data is provided...
 
Is there such thing as maximum melting eutectic? Why is the melting point of the eutectic point always minimum? Is that because its not thermodynamically feasible?