Structure of Atom

JEE Advanced · Chemistry · 23 past questions

1. Q1 2026 Paper 1

   The 2s and the 2p orbital energies of hydrogen atom are $E_{2s}$(H) and $E_{2p}$(H), respectively. The 2s and…

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2. Q2 2026 Paper 2

   $\mathbf{X}^{a+}$ and $\mathbf{Y}^{b+}$ are hydrogen-like species. The wavelength of light absorbed during…

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3. Q3 2024 Paper 1

   Among the following, the correct statement(s) for electrons in an atom is(are)

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4. Q4 2024 Paper 2

   According to Bohr's model, the highest kinetic energy is associated with the electron in the

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5. Q5 2023 Paper 2

   For He$^+$, a transition takes place from the orbit of radius 105.8 pm to the orbit of radius 26.45 pm. The…

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6. Q6 2021 Paper 2

   Consider a helium (He) atom that absorbs a photon of wavelength 330 nm. The change in the velocity (in cm…

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7. Q7 2020 Paper 2

   The figure below is the plot of potential energy versus internuclear distance ($d$) of H$_2$ molecule in the… (with a figure)

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8. Q8 2019 Paper 2

   The ground state energy of hydrogen atom is −13.6 eV. Consider an electronic state Ψ of He⁺ whose energy…

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9. Q9 2019 Paper 2

   Answer Q.15 and Q.16 by appropriately matching the lists based on the information given in the paragraph…

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10. Q10 2017 Paper 1

    Answer Q.31, Q.32 and Q.33 by appropriately matching the information given in the three columns of the… (with a figure)

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11. Q11 2017 Paper 1

    Answer Q.31, Q.32 and Q.33 by appropriately matching the information given in the three columns of the… (with a figure)

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12. Q12 2017 Paper 1

    Answer Q.31, Q.32 and Q.33 by appropriately matching the information given in the three columns of the… (with a figure)

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13. Q13 2016 Paper 1

    $P$ is the probability of finding the 1s electron of hydrogen atom in a spherical shell of infinitesimal… (with a figure)

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14. Q14 2015 Paper 1

    Not considering the electronic spin, the degeneracy of the second excited state ($n=3$) of H atom is 9, while…

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15. Q15 2014 Paper 1

    In an atom, the total number of electrons having quantum numbers $n = 4$, $|m_l| = 1$ and $m_s = -1/2$ is

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16. Q16 2013 Paper 1

    The atomic masses of $He$ and $Ne$ are 4 and 20 a.m.u., respectively. The value of the de Broglie wavelength…

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17. Q17 2012 Paper 1

    The kinetic energy of an electron in the second Bohr orbit of a hydrogen atom is [$a_0$ is Bohr radius]

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18. Q18 2011 Paper 1

    The maximum number of electrons that can have principal quantum number, $n = 3$, and spin quantum number…

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19. Q19 2011 Paper 1

    The work function ($\phi$) of some metals is listed below. The number of metals which will show photoelectric…

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20. Q20 2010 Paper 2

    Paragraph for Questions 15 to 17.…

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21. Q21 2010 Paper 2

    Paragraph for Questions 15 to 17.…

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22. Q22 2010 Paper 2

    Paragraph for Questions 15 to 17.…

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23. Q23 2008 Paper 2

    Match the entries in Column I with the correctly related quantum number(s) in Column II. Indicate your answer…

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