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Day 513: JEE Mains Chemistry

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

  1. Question 1

    Structure of Atom. Asked once: 25 Jun 2022

    53
    The longest wavelength of light that can be used for the ionisation of lithium atom (Li)(Li) in its ground state is x×10−8 mx\times10^{- 8}\text{ }m. The value of xx is (Nearest Integer) (Given: Energy of the electron in the first shell of the hydrogen atom is −2.2×10−18 J- 2.2 \times10^{- 18}\text{ }J; h=6.63×10−34Jsh = 6.63 \times10^{- 34}Js and c=3×108 ms−1c = 3 \times10^{8}{\text{ }ms}^{- 1} )

  2. Question 2

    The d- and f-Block Elements. Asked once: 2021 Paper 10

    34
    The oxide that shows magnetic property is:

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  3. Question 3

    The p-Block Elements. Asked once: 30 Jan 2023

    31
    Lithium aluminium hydride can be prepared from the reaction of

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  4. Question 4

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

    133
    Major product ' BB ' of the following reaction sequence is

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  5. Question 5

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

    48
    A in the above reaction is:

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