Quantrex Quantrex AcademyJEE · NEET · NDA PYQs with solutions Open app
JEE Main202331 Jan 2023Evening ShiftChemistrySolutionsActual

Evaluate the following statements for their correctness. A. The elevation in boiling point temperature of water will be same for 0 . 1 M NaCl and 0 . 1 M urea. B. Azeotropic mixture boil without change in their composition. C. Osmosis always takes place from hypertonic to hypotonic solution. D. The density of 32 % H 2 SO 4 solution having molarity 4 . 09 M is approximately 1 . 26 g mL – 1 . E. A negatively char

Options

  1. AB and D only
  2. BB, D and E only
  3. CA and C only
  4. DA, B and C only

Correct answer

A. B and D only

Step-by-step solution

(A) Elevation in boiling point ( ∆ T b ) temperature of the water is not same, as ‘ i ’ value is different for two solutions. (B) Azeotropic mixture: Liquid mixtures that distill over without changes in composition are called constant boiling mixtures or Azeotropes or Azeotropic mixtures. (C) Osmosis always takes place from hypotonic (low concentration of solute) solution to hypertonic (high concentration of solute) solution. (D) Let the mass of H 2 SO 4 ( 32 % ) is 100. ∴ Weight of H 2 SO 4

Practice Solutions on Quantrex Academy →

More from Solutions

In a solvent S , a compound B is partially dissociated into C and D as given below: B 2 C + 2 D B , C and D are non-volatile in nature. The molar mass of B is 10 times the molar ma 2026Passage: Two volatile liquids A and B form an ideal solution. Consider a 5 molal solution of B in A inside a closed container having a total vapour pressure of 100 mm Hg at 300 K. 2026Passage: Two volatile liquids A and B form an ideal solution. Consider a 5 molal solution of B in A inside a closed container having a total vapour pressure of 100 mm Hg at 300 K. 2026Given below are two statements: Given: Molar mass of C, H, O, Cl are 12, 1, 16 and 35.5 g mol ⁻¹ , respectively. Statement I: In 30 % (w/w) solution of methanol in CCl ₄ (at T K), 2026Which of the following statements are not correct? A. For water, magnitude of K_b is more than the magnitude of K_f . B. The elevation in boiling point of water when a non-volatile 2026Given below are two statements : Statement I : H₂ O molecules move from the chamber 1 to chamber 2 . Statement II : The osmotic pressure of a solution prepared by dissolving 50 mg 2026When 0.25 moles of a non-volatile, non-ionizable solute was dissolved in 1 mole of a solvent the vapor pressure of solution was x % of vapor pressure of pure solvent. What is x % ? 202620 g hemoglobin in a 1 L aqueous solution (A) at 300 K is separated from pure water by semi permeable membrane. At equilibrium the height of solution in a tube dipped in a solution 2026 Full Solutions list All JEE Main PYQs