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Day 17: 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 5 times: 2021 Paper 22, 2021 Paper 25, 6 Apr 2024, 2 Apr 2026 S1, 8 Apr 2026 S2. This one: 8 Apr 2026 S2 See all 5 of this type

    37
    Given below are two statements : Statement I: Vapors of the liquid with higher boiling point condense before vapours of the liquid with lower boiling points in fractional distillation. Statement II : The vapors rising up in the fractionating column become richer in high boiling component of the mixture. In the light of the above statements, choose the correct answer from the option given below :

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  2. Question 2

    The d- and f-Block Elements. This type asked 5 times: 2021 Paper 13, 29 Jul 2022, 9 Apr 2024, 28 Jan 2026 S1, 8 Apr 2026 S2. This one: 8 Apr 2026 S2 See all 5 of this type

    35
    Given below are two statements : Statement I : The number of pairs among [Ti4+,V2+],[V2+,Mn2+],[Mn2+,Fe3+]\left\lbrack {Ti}^{4 +},V^{2 +} \right\rbrack,\left\lbrack V^{2 +},{Mn}^{2 +} \right\rbrack,\left\lbrack {Mn}^{2 +},{Fe}^{3 +} \right\rbrack and [V2+,Cr2+]\left\lbrack V^{2 +},{Cr}^{2 +} \right\rbrack in which both ions are coloured is 3 . Statement II : The number pairs among [ La3+{La}^{3 +},  Yb2+],[Lu3+,Ce4+]\left. \ {Yb}^{2 +} \right\rbrack,\left\lbrack {Lu}^{3 +},{Ce}^{4 +} \right\rbrack and [Ac3+,Lr3+]\left\lbrack {Ac}^{3 +},{Lr}^{3 +} \right\rbrack ions in which both are diamagnetic is 3 . In the light of the above statements, choose the correct answer from the option given below :

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  3. Question 3

    Alcohols, Phenols and Ethers. This type asked 5 times: 2021 Paper 1, 2021 Paper 10, 28 Jul 2022, 23 Jan 2026 S2, 6 Apr 2026 S2. This one: 6 Apr 2026 S2 See all 5 of this type

    41
    Consider the following reaction. Statement I: In the above reaction, product formed will be a mixture of benzyl alcohol and iodobenzamide. Statement II : In the above reaction, the −O−CH2−- O - {CH}_{2} - bond is cleaved to give the product. In the light of the above statements, choose the correct answer from the options given below:

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  4. Question 4

    Chemical Kinetics. This type asked 5 times: 2021 Paper 23, 27 Jun 2022, 29 Jun 2022, 22 Jan 2026 S2, 6 Apr 2026 S2. This one: 6 Apr 2026 S2 See all 5 of this type

    50
    Decomposition of a hydrocarbon follows the equation k=(5.5×1011 s−1)e−28000 K Tk = \left( 5.5 \times 10^{11}{\text{ }s}^{- 1} \right)e^{\frac{- 28000\text{ }K}{\text{ }T}}. The activation energy of reaction is ____\_\_\_\_ kJmol−1kJ{mol}^{- 1}. (Nearest Integer) Given : R=8.3JK−1 mol−1R = 8.3{JK}^{- 1}{\text{ }mol}^{- 1}

  5. Question 5

    Organic Chemistry - Some Basic Principles and Techniques. This type asked 5 times: 6 Apr 2023, 10 Apr 2023, 11 Apr 2023, 6 Apr 2024, 6 Apr 2026 S1. This one: 6 Apr 2026 S1 See all 5 of this type

    38
    RfR_{f} value for 2-methylpropene in a solvent system (Ethyl acetate + ether) is 0.42 . 2-methylpropene is treated with dilute H2SO4H_{2}SO_{4} to give major organic product (X). RfR_{f} value for (X) in the same solvent system under identical condition will be :

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