PYQ Vault

Day 530: JEE Mains Chemistry

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

  1. Question 1

    Aldehydes, Ketones and Carboxylic Acids. Asked once: 1 Feb 2023

    138
    In a reaction, reagents ' XX ' and ' YY ' respectively are :

    Tap an option to check your answer.

  2. Question 2

    Amines. Asked once: 25 Jan 2023

    45
    Identify the product formed (and EE )

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  3. Question 3

    Chemical Kinetics. Asked once: 2021 Paper 15

    30
    A →\rightarrow B. In this reaction the concentration of B changes by 0.2 mol per litre in 30 minutes. Find the average rate of the reaction in moles per litre hour
  4. Question 4

    Chemical Thermodynamics. Asked once: 24 Jan 2023

    150
    One mole of an ideal monoatomic gas is subjected to changes as shown in the graph. The magnitude of the work done (by the system or on the system) is____ ×102 J\times 10^{2}\text{ }J (nearest integer)
  5. Question 5

    Classification of Elements and Periodicity. Asked once: 26 Jul 2022

    142
    Consider an imaginary ion  2248X3−\ _{22}^{48}X^{3 -}. The nucleus contains ' aa '% more neutrons than the number of electrons in the ion. The value of ' aa ' is [nearest integer]