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Day 44: MHT-CET Chemistry

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

  1. Question 1

    Chemical Thermodynamics and Energetics. Asked 5 times: 16 May 2023 S1*, 23 Apr 2025 S1*, 26 Apr 2025 S2, 11 Apr 2026 S1*, 18 Apr 2026 S2 (* = numbers or wording changed that year) See all 5 times it was asked

    7
    1 mole of an ideal gas is compressed isothermally and reversibly from initial pressure xx kPa to final pressure 2x2x kPa at 300 K. Find the work done (R=8.314 J K−1mol−1)(R = 8.314\ \mathrm{J\,K^{-1}mol^{-1}})

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  2. Question 2

    Ionic Equilibria. Asked 5 times: 20 Apr 2025 S2*, 22 Apr 2025 S1*, 17 Apr 2026 S2*, 18 Apr 2026 S1*, 18 Apr 2026 S2 (* = numbers or wording changed that year) See all 5 times it was asked

    10
    The solubility of salt AX2\mathrm{AX_2} is 6×10−12 mol dm−36 \times 10^{-12}\ \mathrm{mol\,dm^{-3}}. What is solubility product of the salt ?

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  3. Question 3

    Solid State. Asked 5 times: 3 May 2023 S2*, 4 May 2023 S2*, 16 May 2023 S1*, 17 Apr 2026 S2*, 18 Apr 2026 S1 (* = numbers or wording changed that year) See all 5 times it was asked

    20
    Calculate the void volume in fcc unit cell if total volume of a unit cell is 6.4×10−23 cm36.4 \times 10^{-23}\ \mathrm{cm^3} ?

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  4. Question 4

    Aldehydes, Ketones and Carboxylic Acids. Asked 5 times: 4 May 2023 S2, 13 May 2024 S2*, 14 May 2024 S1*, 19 Apr 2025 S1*, 17 Apr 2026 S2 (* = numbers or wording changed that year) See all 5 times it was asked

    17
    Identify the product 'B' in the following reaction Toluene →Chromyl chloride/CS2A→H3O+B\xrightarrow{\text{Chromyl chloride}/\mathrm{CS_2}} A \xrightarrow{\mathrm{H_3O^+}} B

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  5. Question 5

    Solid State. Asked 5 times: 20 Apr 2025 S2*, 22 Apr 2025 S1*, 25 Apr 2025 S2*, 26 Apr 2025 S2*, 17 Apr 2026 S1 (* = numbers or wording changed that year) See all 5 times it was asked

    20
    Calculate the number of unit cells in 1cm3^3 of metal if it forms simple cubic structure with unit cell edge length 500 pm.

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