Q114 / 200 · MHT CET - Medical 2026 (25 April Shift 1) · Chemistry
Identify the correct statements for ideal solution.
(A) It obeys Raoult's law over the entire range of concentration.
(B) It shows a positive deviation from Raoult's law.
(C) In an ideal solution, solvent-solute, solute-solute and solvent-solvent molecular interactions are comparable.
(D) The volume change i.e. $\Delta_{\text{mix}}V = 0$
(E) The enthalpy change i.e. $\Delta_{\text{mix}}H = 0$
Choose the correct answer from the options given below:
(A) It obeys Raoult's law over the entire range of concentration.
(B) It shows a positive deviation from Raoult's law.
(C) In an ideal solution, solvent-solute, solute-solute and solvent-solvent molecular interactions are comparable.
(D) The volume change i.e. $\Delta_{\text{mix}}V = 0$
(E) The enthalpy change i.e. $\Delta_{\text{mix}}H = 0$
Choose the correct answer from the options given below:
- A(A), (B) and (D) only.
- Correct answerB(A), (C), (D) and (E) only.
- C(A), (B), (C) and (D) only.
- D(B), (C), (D) and (E) only.
Solution
An ideal solution is defined as a solution that obeys Raoult's law over the entire range of concentration. Thus, statement (A) is correct and statement (B) is incorrect.
For an ideal solution, the intermolecular attractive forces between the solute-solute and solvent-solvent molecules are nearly equal to those between solute-solvent molecules. Thus, statement (C) is correct.
Since the interactions are similar, there is no change in volume or enthalpy upon mixing. Therefore, $\Delta_{\text{mix}}V = 0$ and $\Delta_{\text{mix}}H = 0$. Thus, statements (D) and (E) are correct.
The correct statements are (A), (C), (D) and (E).
Answer: (A), (C), (D) and (E) only.
For an ideal solution, the intermolecular attractive forces between the solute-solute and solvent-solvent molecules are nearly equal to those between solute-solvent molecules. Thus, statement (C) is correct.
Since the interactions are similar, there is no change in volume or enthalpy upon mixing. Therefore, $\Delta_{\text{mix}}V = 0$ and $\Delta_{\text{mix}}H = 0$. Thus, statements (D) and (E) are correct.
The correct statements are (A), (C), (D) and (E).
Answer: (A), (C), (D) and (E) only.
Hence, the correct answer is option: 'B'.