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Day 401: JEE Mains Chemistry

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

  1. Question 1

    Haloalkanes and Haloarenes. Asked once: 24 Jan 2026 S1

    42
    Given below are two statements : Statement I: ' C−ClC - Cl ' bond is stronger in CH2=CH−Cl{CH}_{2} = CH - Cl than CH3−CH2−Cl{CH}_{3} - {CH}_{2} - Cl Statement II : The given optically active molecule, on hydrolysis gives a solution that can rotate the plane polarized light. In the light of the above statements, choose the correct answer from the options given below

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  2. Question 2

    Hydrocarbons. Asked once: 5 Apr 2026 S1

    39
    "P" is hydrocarbon of molecular formula : C8H14C_{8}H_{14}. On ozonolysis, "P" forms "Q". "Q" on treatment with alkali under reflux condition produces. "R", which on treatment with I2/NaOHI_{2}/NaOH gives a yellow precipitate. Acidification of the solution gives "S". The structure of " S " given below : The correct structure of " P " is

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  3. Question 3

    Organic Chemistry - Some Basic Principles and Techniques. Asked once: 2 Apr 2026 S2

    38
    Given below are two statements : Statement I: In O2N−C6H4−C+H−C6H4−OCH3\mathrm{O_{2}N-C_{6}H_{4}-\overset{+}{C}H-C_{6}H_{4}-OCH_{3}} (both groups para), the carbocation is stabilized by +R effect of −OCH3- {OCH}_{3} group. Statement II : In O2N−C6H4−C−H−C6H4−OCH3\mathrm{O_{2}N-C_{6}H_{4}-\overset{-}{C}H-C_{6}H_{4}-OCH_{3}} (both groups para), the carbanion is stabilized by -R effect of −NO2- {NO}_{2} group. In the light of the above statements, choose the correct answer from the options given below :

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  4. Question 4

    Organic Reaction Mechanisms. Asked once: 7 Apr 2025

    125
    Identify the structure of the final product (D) in the following sequence of the reactions: Total number of sp2sp^{2} hybridised carbon atoms in product D is ____\_\_\_\_.

  5. Question 5

    Solutions. Asked once: 22 Jan 2026 S1

    32
    Consider a solution of CO2( g)CO_{2}(\text{ }g) dissolved in water in a closed container. Which one of the following plots correctly represents variation of log (partial pressure of CO2 in vapour phase above water) [y-axis] with log (mole fraction of CO2CO_{2} in water) [ x -axis] at 25∘C25^{\circ}C ?

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