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Day 22: MHT-CET Chemistry

5 questions. Try each one first, then open its answer.

  1. Question 1

    Solutions and Colligative Properties. Asked 7 times: 2 May 2023 S2*, 10 May 2023 S2*, 9 May 2024 S1*, 11 Apr 2026 S2*, 13 Apr 2026 S1*, 17 Apr 2026 S1*, 14 May 2026 S2 (* = numbers or wording changed that year) See all 7 times it was asked

    22
    A solution of 10.010.0 g of a nonvolatile, nonelectrolyte solute dissolved in 0.20.2 kg of benzene boils at 81.2∘C81.2^\circ\mathrm{C}. Calculate molar mass of the compound. (ebullioscopic constant for benzene =2.53= 2.53 K kg mol−1\mathrm{mol^{-1}} and boiling point of pure benzene =80.1∘C= 80.1^\circ\mathrm{C})

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  2. Question 2

    Solutions and Colligative Properties. Asked 7 times: 4 May 2023 S2*, 9 May 2023 S2*, 15 May 2023 S1, 15 May 2023 S2*, 9 May 2024 S2*, 18 Apr 2026 S2*, 13 May 2026 S1 (* = numbers or wording changed that year) See all 7 times it was asked

    22
    What is the molar mass of a solute when a solution is prepared by dissolving 0.80.8 g of solute in 0.3 dm30.3\ \mathrm{dm^3} of water having osmotic pressure 0.20.2 atm at 300300 K (R = 0.082 atm dm3 K−1 mol−10.082\ \mathrm{atm\,dm^3\,K^{-1}\,mol^{-1}})

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  3. Question 3

    Ionic Equilibria. Asked 7 times: 9 May 2024 S1, 11 May 2024 S2, 13 May 2024 S2, 25 Apr 2025 S1, 26 Apr 2025 S1, 11 Apr 2026 S1, 18 Apr 2026 S2 See all 7 times it was asked

    12
    Which of the following aqueous salt solutions has the least pH value ?

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  4. Question 4

    Structure of Atom. Asked 7 times: 2 May 2023 S1*, 3 May 2023 S1*, 3 May 2023 S2*, 20 Apr 2025 S1*, 13 Apr 2026 S2*, 16 Apr 2026 S1*, 17 Apr 2026 S2 (* = numbers or wording changed that year) See all 7 times it was asked

    2
    Find the energy of third stationary orbit of Bohr's model of hydrogen atom if the energy of ground state is −E-E J

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  5. Question 5

    Ionic Equilibria. Asked 7 times: 2 May 2023 S1, 11 May 2023 S1, 11 May 2024 S1, 20 Apr 2025 S2, 23 Apr 2025 S1, 25 Apr 2025 S2, 26 Apr 2025 S2 See all 7 times it was asked

    62
    Which among the following salts turns red litmus blue in its aqueous solution?

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