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Day 453: JEE Mains Chemistry

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

  1. Question 1

    Haloalkanes and Haloarenes. Asked once: 9 Apr 2024

    33
    In the following sequence of reaction, the major products BB and CC respectively are:

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  2. Question 2

    Hydrocarbons. Asked once: 3 Apr 2025

    121
    Xg of nitrobenzene on nitration gave 4.2 g of m -dinitrobenzene. X=X = ____ g. (nearest integer) [Given : molar mass (in gmol−1g{mol}^{- 1} ) C:12,H:1C:12,H:1, O:16, N:14]O:16,\text{ }N:14\rbrack

  3. Question 3

    Organic Chemistry - Some Basic Principles and Techniques. Asked once: 29 Jan 2025

    122
    Isomeric hydrocarbons →\rightarrow negative Baeyer's test (Molecular formula C9H12C_{9}H_{12} ). The total number of isomers from above with four different non-aliphatic substitution sites is -

  4. Question 4

    Organic Reaction Mechanisms. Asked once: 12 Apr 2023

    57
    The value of xx in compound ' DD ', molecular formula CxH19NO4I2C_{x}H_{19}NO_{4}I_{2}, is

  5. Question 5

    Solutions. Asked once: 4 Apr 2024

    149
    2.7Kg2.7Kg of each of water and acetic acid are mixed, the freezing point of the solution will be −x ∘C- x\ ^{\circ}C. Consider the acetic acid does not dimerise in water, nor dissociates in water x=x = _________ (nearest integer) [Given: Molar mass of water =18 g mol−1= 18\text{ }g{\text{ }mol}^{- 1}, acetic acid =60 g mol−1= 60\text{ }g{\text{ }mol}^{- 1} ]
     KfH2O:1.86 K kg mol−1\ ^{K_{f}}H_{2}O:1.86\text{ }K\text{ }kg{\text{ }mol}^{- 1}
    KfK_{f} acetic acid :3.90 K kg mol−1:3.90\text{ }K\text{ }kg{\text{ }mol}^{- 1} freezing point: H2O=273 KH_{2}O = 273\text{ }K, acetic acid  =290 K]\left. \ = 290\text{ }K \right\rbrack