PYQ Vault
EbooksTutor

Solutions and Colligative Properties

MHT-CET Chemistry. Try each one first, then open its answer.

Top 10 MHT-CET PYQs to practise first

The questions and kinds of question asked most often come first. Each one says how often and in which papers.

  1. Question 1

    This type asked 14 times: 4 May 2023 S1, 9 May 2023 S2, 10 May 2024 S1, 12 May 2024 S1, 20 Apr 2025 S1, 21 Apr 2025 S1, 21 Apr 2025 S2, 22 Apr 2025 S2, 25 Apr 2025 S2, 26 Apr 2025 S2, 13 Apr 2026 S1, 17 Apr 2026 S1, 20 Apr 2026 S1, 19 May 2026 S1. This one: 19 May 2026 S1 See all 14 of this type

    27
    Identify from following equimolar solutions that has maximum boiling point elevation. (Assuming complete dissociation)

    Tap an option to check your answer.

  2. Question 2

    This type asked 14 times: 2 May 2023 S1, 3 May 2023 S1, 9 May 2023 S2, 16 May 2023 S2, 12 May 2024 S1, 13 May 2024 S2, 20 Apr 2025 S2, 21 Apr 2025 S1, 23 Apr 2025 S1, 25 Apr 2025 S1, 26 Apr 2025 S1, 16 Apr 2026 S2, 18 Apr 2026 S1, 19 Apr 2026 S1. This one: 19 Apr 2026 S1 See all 14 of this type

    22
    A solution of non volatile solute has boiling point elevation 0.700.70 K if KbK_b for the solvent is 2.44 K kg mol−12.44\ \mathrm{K\,kg\,mol^{-1}}. What is the molality of the solution?

    Tap an option to check your answer.

  3. Question 3

    This type asked 13 times: 2 May 2023 S2, 3 May 2023 S1, 4 May 2023 S1, 10 May 2023 S2, 9 May 2024 S1, 14 May 2024 S2, 25 Apr 2025 S1, 11 Apr 2026 S2, 13 Apr 2026 S1, 17 Apr 2026 S1, 14 May 2026 S2, 19 May 2026 S1, 19 May 2026 S2. This one: 19 May 2026 S2 See all 13 of this type

    23
    Addition of 0.6430.643 g of compound to 5050 ml of benzene (density of benzene =0.879= 0.879 g/ml) lowers the freezing point from 5.51∘C5.51^\circ\mathrm{C} to 5.03∘C5.03^\circ\mathrm{C}. If KfK_f for benzene is 5.125.12 K kg/mol. Calculate the molecular weight of a compound in gram?

    Tap an option to check your answer.

  4. Question 4

    This type asked 13 times: May 2022 S1, 10 May 2023 S2, 15 May 2023 S1, 10 May 2024 S2, 12 May 2024 S2, 14 May 2024 S2, 20 Apr 2025 S1, 11 Apr 2026 S1, 11 Apr 2026 S2, 19 Apr 2026 S2, 14 May 2026 S1, 15 May 2026 S2, 19 May 2026 S2. This one: 19 May 2026 S2 See all 13 of this type

    24
    Find the solubility of organic compound R-X in water at 25∘C25^\circ\mathrm{C} and at 130130 mmHg, if Henry's law constant for that organic compound is 0.160 mol L−1 bar−10.160\ \mathrm{mol\ L^{-1}\ bar^{-1}} at that temperature.

    Tap an option to check your answer.

  5. Question 5

    This type asked 10 times: 2 May 2023 S2, 10 May 2023 S1, 11 May 2023 S1, 16 May 2023 S1, 12 May 2024 S2, 13 May 2024 S2, 23 Apr 2025 S1, 17 Apr 2026 S1, 13 May 2026 S1, 15 May 2026 S2. This one: 15 May 2026 S2 See all 10 of this type

    22
    Calculate van't Hoff factor for CaCl2\mathrm{CaCl_2}, if osmotic pressure of CaCl2\mathrm{CaCl_2} and urea solutions of same concentrations at same temperature are 0.650.65 and 0.270.27 atm respectively.

    Tap an option to check your answer.

  6. Question 6

    Asked 9 times: 2 May 2023 S2*, 10 May 2023 S1*, 11 May 2023 S1*, 16 May 2023 S1*, 12 May 2024 S2*, 13 May 2024 S2*, 23 Apr 2025 S1*, 17 Apr 2026 S1*, 13 May 2026 S1 (* = numbers or wording changed that year) See all 9 times it was asked

    21
    A 0.10.1 molal aqueous solution of K3[Fe(CN)6]\mathrm{K_3[Fe(CN)_6]} freezes at −0.85 ∘-0.85\ ^\circC. If KfK_f for water is 1.86 K kg mol−11.86\ \mathrm{K\,kg\,mol^{-1}}, what is the van't Hoff factor for this solution?

    Tap an option to check your answer.

  7. Question 7

    This type asked 9 times: 9 May 2023 S1, 10 May 2024 S2, 11 May 2024 S2, 12 May 2024 S1, 20 Apr 2025 S1, 22 Apr 2025 S1, 16 Apr 2026 S2, 20 Apr 2026 S2, 19 May 2026 S1. This one: 19 May 2026 S1 See all 9 of this type

    26
    Calculate the osmotic pressure of a solution containing 3.423.42 g of fructose (molar mass = 180180 g/mol) in 1 litre of water at 400400 K.

    Tap an option to check your answer.

  8. Question 8

    This type asked 9 times: 3 May 2023 S2, 10 May 2024 S1, 11 May 2024 S1, 14 May 2024 S1, 21 Apr 2025 S2, 16 Apr 2026 S1, 20 Apr 2026 S1, 12 May 2026 S2, 15 May 2026 S2. This one: 15 May 2026 S2 See all 9 of this type

    21
    Calculate the boiling point elevation of an aqueous solution containing 0.50.5 g glucose in 2020 g water if KbK_b for water is 0.52 K kg mol−10.52\ \mathrm{K\ kg\ mol^{-1}}. [Molar mass of glucose =180 g mol−1= 180\ \mathrm{g\ mol^{-1}}]

    Tap an option to check your answer.

  9. Question 9

    This type asked 9 times: 2 May 2023 S1, 10 May 2023 S1, 15 May 2023 S2, 16 May 2023 S2, 10 May 2024 S1, 14 May 2024 S2, 11 Apr 2026 S2, 16 Apr 2026 S2, 14 May 2026 S2. This one: 14 May 2026 S2 See all 9 of this type

    23
    What type of solution is gasoline?

    Tap an option to check your answer.

  10. Question 10

    This type asked 9 times: 3 May 2023 S1, 11 May 2023 S2, 25 Apr 2025 S1, 11 Apr 2026 S1, 15 Apr 2026 S1, 18 Apr 2026 S1, 19 Apr 2026 S1, 12 May 2026 S2, 14 May 2026 S1. This one: 14 May 2026 S1 See all 9 of this type

    20
    If a solution containing 1010 g per dm3\mathrm{dm^3} of urea (molecular mass =60 g mol−1= 60\ \mathrm{g\,mol^{-1}}) is isotonic with 5%5\% solution of a nonvolatile solute, find the molar mass of a nonvolatile solute.

    Tap an option to check your answer.