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JEE Advanced Chemistry Solutions 2024 JEE Advanced 2024 (Paper 2)

JEE Advanced Chemistry Question (2024) — Solution

Question

Vessel-1 contains w _2 ~g of a non-volatile solute X dissolved in w _1 ~g of water. Vessel- 2 contains w _2 ~g of another non-volatile solute Y dissolved in w _1 ~g of water. Both the vessels are at the same temperature and pressure. The molar mass of X is 80 \% of that of Y . The van't Hoff factor for X is 1.2 times of that of Y for their respective concentrations. The elevation of boiling point for solution in Vessel-1 is ________. \% of the solution in Vessel-2.

Options

  1. A. A
  2. B. B
  3. C. C
  4. D. D

Answer

A. A

Step-by-step solution

Vessel-I \( ( T _ b )_ I = i _ x w _2 M _ x 1 w _1 1000 K _ b \) \( M _ X =\) Molar mass of ' X ' Vessel-II \( ( T _ b )_ II = i _ Y w _2 M _ Y 1 w _1 1000 K _ b \) \(M_Y=\) Molar mass of ' \(Y\) ' \( aligned & ( T_b )_ I ( T _ b )_ II 100= i _ x i _ Y M _ Y M _ x 100 \\ & =1.2 100 80 100 \\ & =150 \% aligned \)

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