Quantrex Quantrex AcademyJEE · NEET · NDA PYQs with solutions Open app
NEETChemistrySolutions

Match the mixtures in List-I with their corresponding characteristics in List-II. List-I (Mixture) List-II (Characteristic) (A) n -Hexane + n -Heptane (I) Minimum boiling azeotrope (B) Carbon disulfide + Acetone (II) Negative deviation from Raoult's law (C) Phenol + Aniline (III) Positive deviation from Raoult's law (D) Ethanol ( 95 % ) + Water (IV) Obeys Raoult's law over entire concentration range Choose the correc

Options

  1. A(A)-(I), (B)-(III), (C)-(II), (D)-(IV)
  2. B(A)-(IV), (B)-(III), (C)-(II), (D)-(I)
  3. C(A)-(IV), (B)-(II), (C)-(III), (D)-(I)
  4. D(A)-(IV), (B)-(II), (C)-(I), (D)-(III)

Correct answer

B. (A)-(IV), (B)-(III), (C)-(II), (D)-(I)

Step-by-step solution

(A) n -Hexane and n -Heptane have similar structures and intermolecular forces, so they form an ideal solution which obeys Raoult's law over the entire concentration range (IV). (B) Carbon disulfide and acetone mixture shows a positive deviation from Raoult's law because the dipole-dipole interactions between solute and solvent are weaker than the interactions in pure components (III). (C) Phenol and aniline form strong intermolecular hydrogen bonds between the phenolic proton and the lone pair on the nitrogen atom

Practice Solutions on Quantrex Academy →

More from Solutions

What is boiling point of solution containing 7.45 g of KCl in 500 g of water, assuming 80 % dissociation of KCl ? (molar mass of KCl = 74.5 g/mole , k_b for water = 0.52 K/molal ) 2026Identify from the following pair of solutions on mixing exhibits positive deviation from Raoult's law. 2026A solution containing 1.2 g nonvolatile solute in 100 g. of a solvent has a boiling point elevation 1.2 K. Calculate the molar mass of solute if molal elevation constant of solvent 2026The osmotic pressure of barium chloride and glucose solution of the same concentration at the same temperature are respectively 0.62 atm and 0.24 atm. Calculate the van't Hoff fact 2026Which of the following aqueous solutions exhibits maximum freezing point depression assuming complete dissociation? 2026A solution contains 50 g of common salt in 500 gm of water. Find the concentration of the solution in terms of percentage. 2026What should be the molarity of aqueous solution of K ₂ SO ₄ so that it is isotonic with aqueous 1 M glucose at same temperature, assuming complete dissociation? 2026Which of the following solutions has maximum vapour pressure? 2026 Full Solutions list All NEET PYQs