Download App

2. structure of atom — Chemistry STD 11 Science — Question

Gujarat BoardEnglish MediumSTD 11 ScienceChemistry2. structure of atom1 Mark
MCQ
Which of the following statement does not form part of Bohr's model of the hydrogen atom
  • A
    Energy of the electrons in the orbit is quantized
  • B
    The electron in the orbit nearest to the nucleus has the lowest energy
  • C
    Electrons revolve in different orbits around the nucleus
  • ✓
    The position and velocity of the electrons in the orbit cannot be determined simultaneously
✓

Answer

Correct option: D.
The position and velocity of the electrons in the orbit cannot be determined simultaneously
d
The statement $(D)$ does not form a part of Bohr's model of hydrogen atom.

Bohr assumed that an electron in an atom is located at a definite distance from the nucleus and is revolving with a definite velocity around it. This is against Heisenberg's uncertainty principle, according to which the position and velocity of the electrons in the orbit cannot be determined simultaneously.

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Explore more

More "M.C.Q (1 Marks)" from 2. structure of atom→2. structure of atom — all question types→Chemistry STD 11 Science question papers→Gujarat Board STD 11 Science question papers→Gujarat Board question paper generator→

Similar questions

How many of given compounds show Tautomerism
→
The density of neutrons is of the order
→
In which of the following molecules/ions are all the bonds not equal?
→
When a chemical bond is formed, there is decrease in
→
In the chemical reaction between stoichiometric quantities of $KMnO _4$ and $KI$ in weakly basic solution, what is the number of moles of $I _2$ released for $4$ moles of $KMnO _4$ consumed ?
→
Modern atomic mass scale is based on the mass of :
→
The highest amount of $s-$ character is observed in
→
${\text{Alkyne}}\xrightarrow[{H{g^{ + 2}}}]{{{H^ \oplus }/{H_2}O}}{\text{ketone}}$ 

which of the following alkyne cannot give ketone

→
Electron affinity depends on
→
Which of the following has $ds{p^2}$ hybridization
→