Q31.According to Bohr's atomic theory: (A) Kinetic energy of electron is ∝Z2 . n2 (B) The product of velocity (v) of electron and principal quantum number (n), ′vn′∝Z2. (C) Frequency of revolution of electron in an orbit is ∝Z3 . n3 (D) Coulombic force of attraction on the electron is ∝Z3 . n4 Choose the most appropriate answer from the options given below: (1) (A), (C) and (D) only (2) (A) and (D) only (3) (C) only (4) (A) only
What This Question Tests
This question assesses the student's knowledge of the key relationships derived from Bohr's atomic theory regarding electron properties in different orbits.
Concepts Tested
Formulas Used
KE ∝ Z^2/n^2
v ∝ Z/n
F ∝ Z^3/n^4
Frequency ∝ Z^2/n^3
📚 NCERT Sections This Tests
12.6 — (A) Using The Bohr’S Model Calculate The Speed Of The Electron In A
Physics Class 12 · Chapter 12
12.6 (a) Using the Bohr’s model calculate the speed of the electron in a hydrogen atom in the n = 1, 2, and 3 levels. (b) Calculate the orbital period in each of these levels.
12.4 — The Ground State Energy Of Hydrogen Atom Is –13.6 Ev. What Are The
Physics Class 12 · Chapter 12
12.4 The ground state energy of hydrogen atom is –13.6 eV. What are the kinetic and potential energies of the electron in this state?
12.7 — The Radius Of The Innermost Electron Orbit Of A Hydrogen Atom Is
Physics Class 12 · Chapter 12
12.7 The radius of the innermost electron orbit of a hydrogen atom is 5.3×10–11 m. What are the radii of the n = 2 and n =3 orbits?
📋 Question Details
- Chapter
- Atomic Structure
- Topic
- Bohr's Atomic Theory
- Year
- 2021
- Shift
- 24 Feb Shift 2
- Q Number
- Q31
- Type
- MCQ
- NCERT Ref
- Class 11 Chemistry Ch 2: Atomic Structure
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