NEET 2002 Chemistry question

A solution containing components A and B follows Raoult's law :

(1)A - B attraction force is greater than A - A and B - B
(2)A - B attraction force is less than A - A and B - B
(3)Attraction force remains same in A - A and B - BCorrect
(4)Volume of solution is different from sum of volume of solute and solvent

Answer: (3)

Solution

A solution that obeys Raoult's law over the whole range of composition is an ideal solution. For it, and , which requires that the intermolecular attraction between unlike molecules (A - B) is the same as that between like molecules (A - A and B - B); the interactions remain

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Question ID VK-089001