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Day 433: JEE Mains Chemistry

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

  1. Question 1

    Haloalkanes and Haloarenes. Asked once: 2 Apr 2025

    123
    Consider the above sequence of reactions. 151 g of 2-bromopentane is made to react. Yield of major product P is 80%80\% whereas Q is 100%100\%. Mass of product Q obtained is ____ g. (Given molar mass in g mol−1g\ mol^{-1}: H: 1, C: 12, O: 16, Br: 80)

  2. Question 2

    Hydrocarbons. Asked once: 28 Jan 2026 S1

    33
    Given below are two statements for the following reaction sequence. Statement I: Compound ' ZZ ' will give yellow precipitate with NaOI . Statement II: Compound 'Q' has two different types of ' H ' atoms (aromatic : aliphatic) in the ratio 1:3. In the light of the above statements, choose the correct answer from the option given below:

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  3. Question 3

    Organic Chemistry - Some Basic Principles and Techniques. Asked once: 21 Jan 2026 S2

    43
    Given below are two statements : Statement-I: Compound (X), shown below , dissolves in NaHCO3{NaHCO}_{3} solution and has two chiral carbon atoms. Statement - II : Compound (Y), shown below, has two carbons with sp3{sp}^{3} hybridization, one carbon with sp2{sp}^{2} and one carbon with sp hybridization 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: 1 Feb 2024

    138
    Acid DD formed in above reaction is:

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  5. Question 5

    Solutions. Asked once: 28 Jan 2025

    40
    What is the freezing point depression constant of a solvent, 50 g of which contain 1 g non volatile solute (molar mass 256 g mol−1256\text{ }g{\text{ }mol}^{- 1} ) and the decrease in freezing point is 0.40 K ?

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