13 JEE Main 2020 Structure of Atom previous-year questions with verified answers and step-by-step solutions.
These are the JEE Main 2020 previous-year questions from the Structure of Atom chapter of Chemistry. Each links to a full solution with a verified answer key. To see the whole chapter across all years, visit the Structure of Atom chapter hub.
The figure that is not a direct manifestation of the quantum nature of atom is :
The number of subshells associated with n = 4 and m = - 2 quantum numbers is:
Preparation of Bakelite proceeds via reactions:
For the Balmer series, in the spectrum of H atom , v - = R H 1 n 1 2 - 1 n 2 2 , the correct statements among I to I V…
The difference between the radii of 3 rd and 4 th  orbits of L i 2 + is ΔR 1 . The difference between the rad…
In the sixth period, the orbitals that are filled are :
The work function of sodium metal is 4 . 41 × 10 - 19 J . If photons of wavelength 300   nm are incident on t…
The number of orbitals associated with quantum numbers n = 5 , m s = + 1 2 is:
The de Broglie wavelength of an electron in the 4 t h Bohr orbit is:
Consider the hypothetical situation where the azimuthal quantum number, l , takes values 0 ,   1 ,   2 , …
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