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Day 49: JEE Mains Chemistry

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

  1. Question 1

    Organic Chemistry - Some Basic Principles and Techniques. This type asked 3 times: 27 Jan 2024, 31 Jan 2024, 6 Apr 2026 S2. This one: 6 Apr 2026 S2 See all 3 of this type

    37
    Given below are two statements : Statement I: A mixture of C12H22O11C_{12}H_{22}O_{11} (sugar) and NaCl can be separated by dissolving sugar in alcohol, due to differential solubility Statement II : Rose essence from rose petals is separated by steam distillation due to its high volatility and insolubility in H2OH_{2}O. In the light of the above statements, choose the correct answer from the options given below :

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  2. Question 2

    Amines. This type asked 3 times: 2021 Paper 3, 2021 Paper 15, 6 Apr 2026 S1. This one: 6 Apr 2026 S1 See all 3 of this type

    47
    Consider the following sequence of reactions. The percentage of nitrogen in the yellow product ( X ) formed is ____\_\_\_\_ %. (Nearest Integer) (Given Molar mass in gmol−1H:1,C:12, N:14g{mol}^{- 1}H:1,C:12,\text{ }N:14 )

  3. Question 3

    Chemical Thermodynamics. This type asked 3 times: 2 Apr 2025, 21 Jan 2026 S1, 6 Apr 2026 S1. This one: 6 Apr 2026 S1 See all 3 of this type

    30
    Arrange the following isothermal processes in order of the magnitude of the work ( p−Vp-V ) involved between states 1 and 2 . (A) Expansion in single stage wAw_{A} (B) Expansion in multi stages wBw_{B} (C) Compression in single stage wCw_{C} (D) Compression in multi stages wDw_{D}

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  4. Question 4

    Coordination Compounds. This type asked 3 times: 5 Apr 2026 S1, 5 Apr 2026 S2, 6 Apr 2026 S1. This one: 6 Apr 2026 S1 See all 3 of this type

    37
    Which of the following are true about the energy of the given d-orbitals of a tetrahedral complex ? (A) dxy=dxz>dx2−y2d_{xy} = d_{xz} > d_{x^{2} - y^{2}} (B) dxy=dyz>dz2d_{xy} = d_{yz} > d_{z^{2}} (C) dx2−y2>dz2>dxzd_{x^{2} - y^{2}} > d_{z^{2}} > d_{xz} (D) dx2−y2=dz2<dxzd_{x^{2} - y^{2}} = d_{z^{2}} < d_{xz} Choose the correct answer from the options given below :

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  5. Question 5

    Electrochemistry. This type asked 3 times: 28 Jun 2022, 1 Feb 2023, 6 Apr 2026 S1. This one: 6 Apr 2026 S1 See all 3 of this type

    33
    Consider the following data :
    ElectrolyteΛm∘\Lambda_{m}^{\circ} (S cm2 mol−1S\ cm^{2}\ mol^{-1})
    BaCl2BaCl_{2}x1x_{1}
    H2SO4H_{2}SO_{4}x2x_{2}
    HClHClx3x_{3}
    BaSO4BaSO_{4} is sparingly soluble in water. If the conductivity of the saturated BaSO4BaSO_{4} solution is x S cm−1x\ S\ cm^{-1}, then the solubility product of BaSO4BaSO_{4} can be given as (here Λm=Λm∘\Lambda_{m} = \Lambda_{m}^{\circ}) :

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