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Atomic Structure

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Q JEE MAIN 2023
Electrons in a cathode ray tube have been emitted with a velocity of $1000 \mathrm{~ms}^{-1}$. The number of following statements which is/are true about the...
JEE Main Chemistry Medium
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Q JEE MAIN 2023
It is observed that characteristic X-ray spectra of elements show regularity. When frequency to the power ' $n$ ' i.e. $v^n$ of $X$-rays emitted is...
JEE Main Chemistry Easy
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Q JEE MAIN 2023
The total number of lone pairs of electrons on oxygen atoms of ozone is_____
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Q JEE MAIN 2023
Which transition in the hydrogen spectrum would have the same wavelength as the Balmer type transition from n = 4 to n = 2 of...
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Q JEE MAIN 2023
Identify the correct order for the given property for following compounds
JEE Main Chemistry Easy
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Q JEE MAIN 2023
If wavelength of the first line of the Paschen series of hydrogen atom is 720 nm, then the wavelength of the second line of this...
JEE Main Chemistry Medium
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Q JEE MAIN 2023
The shortest wavelength of hydrogen atom in Lyman series is . The longest wavelength in Balmer series of He+ is
JEE Main Physics Easy
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Q JEE MAIN 2023
The radius of the $2^{\text {nd }}$ orbit of $\mathrm{Li}^{2+}$ is x . The expected radius of the $3^{\text {rd }}$ orbit of $\mathrm{Be}^{3+}$ is
JEE Main Chemistry Easy
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Q JEE MAIN 2023
It is observed that characteristic X-ray spectra of elements show regularity. When frequency to the power 'n' i.e. $v^n$ of X-rays emitted is plotted against...
JEE Main Chemistry Easy
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Q JEE MAIN 2024
Compare the energies of following sets of quantum numbers for multielectron system.
(A) n=4,1=1 (B) n=4,1=2
(C) n=3,1=1 (D) n=3,1=2
(E) n=4,1=0
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JEE Main Chemistry Medium
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