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When two liquids 'X' and 'Y' are mixed t...

When two liquids 'X' and 'Y' are mixed the solution becomes hot. When pair of liquids, 'Y' and 'Z' are mixed, the solution'becomes cold. Which of these SOLUTIONS will exhibit negative deviations from Raoult's law?

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Solution of A B becomes warmer means .Delta H. is -ve or it is exothermic .therefore. this mixutre shows negative deviation. Mixture of .B. and .C. becomes cooler means it is endothermic .Delta H. is .+. ve. the mixture shows positive deviation.
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