Answer Q no. 16---Here is the extracted content from the image: **Question (Incomplete)** Question Stem: ...the vapour pressure falls by 10 mbar. The mole fraction of benzene in the solution is Options: (A) 1/5 (B) 5/6 (C) 1/6 (D) 4/5 **Question 16** Question Stem: A 5 M aqueous solution of AgNO3 and 10 M aqueous solution of NaCl are connected by a semipermeable membrane as shown in the figure. Chart Description: * Type: Schematic diagram. * Main Elements: * A rectangular container divided vertically into two chambers by a semipermeable membrane (indicated by vertical lines with horizontal markings). * Left Chamber (Chamber 1): Contains "AgNO3 Solution (5 M)". * Right Chamber (Chamber 2): Contains "NaCl Solution (10 M)". * A horizontal dotted line near the top represents the liquid level in both chambers. * Labels: "Chamber 1" and "Chamber 2" are below the respective chambers. "AgNO3 Solution (5 M)" and "NaCl Solution (10 M)" are inside the chambers. Question Part: The precipitate of AgCl will be formed in Options: (A) Chamber 1 (B) Chamber 2 (C) Simultaneously in both the chambers (D) None of the chambers **Question 17** Question Stem: A: In case of negative deviations from Raoult's law, the intermolecular attractive forces between A - A and B - B are weaker than those between A - B. R: Abnormal molar mass, which is related to van't Hoff factor, is the experimentally determined molar mass. Options: (A) Both Assertion & Reason are true and the reason is the correct explanation of the assertion (B) Both Assertion & Reason are true but the reason is not the correct explanation of the assertion (C) Assertion is true statement but Reason is false (D) Both Assertion and Reason are false statements

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Let's analyze this chemistry problem step by step. We have two chambers separated by a semipermeable membrane. Chamber 1 contains a 5 molar silver nitrate solution, and Chamber 2 contains a 10 molar sodium chloride solution. The key question is: where will silver chloride precipitate form? To answer this, we need to understand what a semipermeable membrane does. It allows water molecules to pass through freely, but it blocks dissolved ions like silver, nitrate, sodium, and chloride ions from crossing between chambers. Now let's examine the chemical reaction that would form silver chloride precipitate. The reaction equation is: silver nitrate plus sodium chloride yields silver chloride plus sodium nitrate. For this precipitation to occur, silver positive ions must physically meet chloride negative ions in the same location. However, the semipermeable membrane prevents this from happening. Silver ions in Chamber 1 cannot cross over to Chamber 2, and chloride ions in Chamber 2 cannot cross over to Chamber 1. Since there's no mixing of the ions, no chemical reaction can take place. Let's analyze each answer option systematically. Option A suggests precipitation in Chamber 1, but Chamber 1 only contains silver positive ions and nitrate negative ions - no chloride ions are present. Option B suggests precipitation in Chamber 2, but Chamber 2 only contains sodium positive ions and chloride negative ions - no silver ions are present. Option C suggests precipitation in both chambers simultaneously, but this would require the ions to mix, which the semipermeable membrane prevents. Therefore, the correct answer is Option D: None of the chambers. No precipitation can occur because the reactants are physically separated and cannot come into contact. Let's summarize the key concepts we've learned. Semipermeable membranes are selective barriers that allow certain substances to pass while blocking others. In this case, water molecules can pass through freely, but dissolved ions like silver positive and chloride negative are blocked. This physical separation is crucial because chemical reactions require the reactants to come into contact. Since the ions cannot mix, no precipitation reaction can occur. This principle has many real-world applications, including cell membranes in biology, dialysis in medicine, and water purification systems. Therefore, our final answer is option D: None of the chambers will form precipitate. To summarize what we've learned: Semipermeable membranes selectively block the movement of ions while allowing water to pass through. Chemical reactions require physical contact between reactants, which cannot occur when they are separated by such membranes. Therefore, when silver nitrate and sodium chloride solutions are separated by a semipermeable membrane, no silver chloride precipitate can form in either chamber. The correct answer is option D: None of the chambers.