Doubts
Sign in
12thPass logo
New chatPYQ LibraryDoubtsRank report
Sign in to see Recents
Sign in to save progress →
Doubts
Sign in

Structure of Atom question

2025 · 4 Apr · Shift 1 · Q3
Guest · try one question or challengeGuest · try one question or challenge
  1. PYQ Library
  2. /JEE Main
  3. /Chemistry
  4. /Structure of Atom
  5. /2025 · 4 Apr · Shift 1 · Q3

Structure of Atom question

2025 · 4 Apr · Shift 1 · Q3

JEE MainChemistryStructure of AtomMCQ+4 / −1
Which one of the following about an electron occupying the 1 s orbital in a hydrogen atom is incorrect? (Bohr's radius is represented by a0\mathrm{a}_0a0​)
  1. A
    The probability density of finding the electron is maximum at the nucleus
  2. B
    The total energy of the electron is maximum when it is at a distance a0a_0a0​ from the nucleus
  3. C
    The electron can be found at a distance 2a02 a_02a0​ from the nucleus
  4. D
    The 1 s orbital is spherically symmetrical
PreviousNext

More from Structure of Atom

  • Consider the ground state of chromium atom (Z=24). How many electrons are with Azimuthal quantum number l=1 and l=2 respectively ?2025 · MCQ
  • Which of the following statements are correct, if the threshold frequency of caesium is 5.16×1014 Hz ? A. When Cs is placed inside a vacuum chamber with an ammeter connected to it and yellow light is focused on Cs ,… Includes diagram2025 · MCQ
  • The extra stability of half-filled subshell is due to : (A) Symmetrical distribution of electrons (B) Smaller coulombic repulsion energy (C) The presence of electrons with the same spin in non-degenerate orbitals (D) Larger exchange energy…2025 · MCQ
  • The energy of an electron in the first Bohr orbit of the H-atom is -13.6 eV. The magnitude of energy value of an electron in the first excited state of Be3+ is ​ eV (nearest integer value).2025 · Numerical
  • Correct statements for an element with atomic number 9 are: A. There can be 5 electrons for which ms​=+21​ and 4 electrons for which ms​=−21​. B. There is only one electron in pz​ orbital. C. The last electron…2025 · MCQ
  • Radius of the first excited state of Helium ion is given as : a0​→ radius of first stationary state of hydrogen atom.2025 · MCQ
  • Given below are two statements : Statement (I) : A spectral line will be observed for a 2px​→2py​ transition. Statement (II) : 2px​ and 2py​ are degenerate orbitals. In the light of the above…2025 · MCQ
  • Heat treatment of muscular pain involves radiation of wavelength of about 900 nm . Which spectral line of H atom is suitable for this? Given : Rydberg constant RH​=105 cm−1, h=6.6×10−34 J s,c=3×108 m/s)…2025 · MCQ