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Day 409: JEE Mains Chemistry

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

  1. Question 1

    Haloalkanes and Haloarenes. Asked once: 22 Jan 2026 S1

    44
    As compared with chlorocyclohexane, which of the following statements correctly apply to chlorobenzene? (A) The magnitude of negative charge is more on chlorine atoms (B) The C−ClC - Cl bond has partial double bond character (C) C−ClC - Cl bond is less polar (D) C−ClC - Cl bond is longer due to repulsion between delocalised electrons of the aromatic ring and lone pairs of electrons of chlorine. (E) The C−ClC - Cl bond is formed using sp2{sp}^{2} hybridised orbital of carbon. Choose the correct answer from the options given below:

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  2. Question 2

    Hydrocarbons. Asked once: 4 Apr 2026 S1

    47
    Consider the following sequence of reactions to give the major product (X). P g of the major product ( X ) formed is reacted with NaHCO3{NaHCO}_{3} solution to liberate a gas which occupied 11.2dm311.2{dm}^{3} at STP. P=P = ____\_\_\_\_ . g. (Given molar mass in gmol−1H:1,C:12g{mol}^{- 1}H:1,C:12, O:16,Cl:35.5)O:16,Cl:35.5)

  3. Question 3

    Organic Chemistry - Some Basic Principles and Techniques. Asked once: 28 Jan 2026 S1

    30
    Method used for separation of mixture of products ( B and C ) obtained in the following reaction is:

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  4. Question 4

    Organic Reaction Mechanisms. Asked once: 29 Jan 2025

    123
    In the Claisen-Schmidt reaction to prepare dibenzalacetone from 5.3 g benzaldehyde, a total of 3.51 g of product was obtained. The percentage yield in this reaction was ______\_\_\_\_\_\_ %.

  5. Question 5

    Solutions. Asked once: 7 Apr 2025

    112
    Match List-I with List-II
    List-IList-II
    (A)Solution chloroform and acetone(I)Minimum boiling azeotrope
    (B)Solution of ethanol and water(II)Dimerizes
    (C)Solution of benzene and toluene(III)Maximum boiling azeotrope
    (D)Solution of acetic acid in benzene(IV)
    ΔVmix =0\Delta V_{\text{mix~}} = 0
    Choose the correct answer from the options given below:

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