7 JEE Main 2012 Structure of Atom previous-year questions with verified answers and step-by-step solutions.
These are the JEE Main 2012 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 increasing order of the ionic radii of the given isoelectronic species is :
If the kinetic energy of an electron is increased four times, the wavelength of the de-Broglie wave associated with it…
The following sets of quantum numbers represent four electrons in an atom. (i) n=4, l=1 (ii) n=4, l=0 (iii) n=3, l=2 (i…
The limiting line in Balmer series will have a frequency of (Rydberg constant, R∞=3.29 × 10¹⁵ cycles / s )
Which of the following paramagnetic ions would exhibit a magnetic moment (spin only) of the order of 5 BM ? (At. Nos. M…
The electrons identified by quantum numbers n and I : (a) n=4, I=1 (b) n=4, l=0 (c) n=3, I=2 (d) n=3, I=1 Can be placed…
If the radius of first orbit of H atom is a₀, the deBroglie wavelength of an electron in the third orbit is