JEE Main Chemistry question

When ethyl alcohol is dissolved in water, it is accompanied by

(A)Absorption of heat and contraction in volume
(B)Evolution of heat and contraction in volumeCorrect
(C)Absorption of heat and increase in volume
(D)Evolution of heat and increase in volume

Answer: (B)

Solution

Mixing ethanol and water is exothermic (new, stronger hydrogen bonds form between the two different molecules) and shows a net contraction in total volume (the two kinds of

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Question ID VK-148891