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Day 540: JEE Mains Chemistry

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

  1. Question 1

    Alcohols, Phenols and Ethers. Asked once: 2021 Paper 26

    44
    Identify AA in the given reaction

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  2. Question 2

    Aldehydes, Ketones and Carboxylic Acids. Asked once: 25 Jan 2023

    137
    ' AA ' in the given reaction is

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  3. Question 3

    Amines. Asked once: 28 Jul 2022

    46
    Identify the correct statement for the below given transformation.

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  4. Question 4

    Chemical Thermodynamics. Asked once: 29 Jun 2022

    142
    2.2 g2.2\text{ }g of nitrous oxide (N2O)\left( N_{2}O \right) gas is cooled at a constant pressure of 1 atm1\text{ }atm from 310 K310\text{ }K to 270 K270\text{ }K causing the compression of the gas from 217.1 mL217.1\text{ }mL to 167.75 mL167.75\text{ }mL. The change in internal energy of the process, ΔU\Delta U is ' −x- x ' JJ. The value of ' xx ' is [nearest integer] (Given: atomic mass of N=14 g mol−1N = 14\text{ }g{\text{ }mol}^{- 1} and of OO =16 g mol−1= 16\text{ }g{\text{ }mol}^{- 1}. Molar heat capacity of N2ON_{2}O is 100JK−1 mol−1100JK^{- 1}{\text{ }mol}^{- 1} )

  5. Question 5

    Classification of Elements and Periodicity. Asked once: 2021 Paper 10

    38
    The first ionization energy of magnesium is smaller as compared to that of elements XX and YY, but higher than that of ZZ. the elements X,YX,Y and ZZ, respectively, are:

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