PYQ Vault

Day 510: JEE Mains Chemistry

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

  1. Question 1

    The d- and f-Block Elements. Asked once: 2021 Paper 14

    29
    Arrange the following in the increasing order of oxidation state: CrO3, V2O5CrO_{3},{\text{ }V}_{2}O_{5}, MnO2,Fe2O3MnO_{2},Fe_{2}O_{3}

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  2. Question 2

    The p-Block Elements. Asked once: 1 Feb 2023

    44
    Given below are two statements: Statement I: Chlorine can easily combine with oxygen to form oxides; and the product has a tendency to explode. Statement II: Chemical reactivity of an element can be determined by its reaction with oxygen and halogens. In the light of the above statements, choose the correct answer from the options given below

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  3. Question 3

    Alcohols, Phenols and Ethers. Asked once: 27 Jul 2022

    60
    In the following reaction The %\% yield for reaction II is 60%60\% and that of reaction II is 50%50\%. The overall yield of the complete reaction is ____\_\_\_\_\% [nearest integer]
  4. Question 4

    Aldehydes, Ketones and Carboxylic Acids. Asked once: 12 Apr 2023

    52
    The mass of NH3NH_{3} produced when 131.8 kg131.8\text{ }kg of cyclohexanecarbaldehyde undergoes Tollen's test is_______ kgkg. (Nearest Integer) Molar Mass of C=12 g/molC = 12\text{ }g/mol
    N=14 g/molN = 14\text{ }g/mol
    O=16 g/molO = 16\text{ }g/mol
  5. Question 5

    Amines. Asked once: 6 Apr 2023

    48
    The major product formed in the following reaction is

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