MHT CET 2023 Chemistry question

Identify the false statement about ideal solution from following:

(A)Ideal solutions obey Raoult's law over entire range of concentration
(B)No heat is evolved or absorbed when two components forming an ideal solution are mixed
(C)Volume of ideal solution is same as sum of volumes of two components taken for mixing
(D)The vapour pressure of ideal solution is either higher or lower than vapour pressure of pure componentsCorrect

Answer: (D)

Solution

An ideal solution obeys Raoult's law at all concentrations and temperatures (a, true), has so no heat is evolved or absorbed (b, true), and has so the total volume equals the sum of the component volumes (c, true). In (d), the vapour pressure of an ideal binary solution,

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Question ID VK-096519