JKCET SERIES Chemistry
Structure Of Atom
15 previous year questions.
Volume: 15 Ques
Yield: Medium
High-Yield Trend
1
2017 4
2014 3
2013 1
2012 3
2010 2
2009 1
2008 Chapter Questions 15 MCQs
01
PYQ 2008
medium
chemistry ID: jkcet-20
Electron density in the -plane of orbital is
1
zero
2
0.5
3
0.75
4
0.9
02
PYQ 2009
medium
chemistry ID: jkcet-20
The set of quantum numbers and correspond to the most loosely bound, ground state electron of which one of the following atoms?
1
2
3
4
03
PYQ 2009
medium
chemistry ID: jkcet-20
If the de-Broglie wavelength of a particle of mass is times its velocity then its value in terms of its mass and Plants constant is
1
2
3
4
04
PYQ 2010
medium
chemistry ID: jkcet-20
In photoelectric effect, the kinetic energy of the photoelectrons increases linearly with the
1
wavelength of the incident light
2
frequency of the incident light
3
velocity of the incident light
4
atomic mass of an element
05
PYQ 2010
medium
chemistry ID: jkcet-20
What is the maximum number of emission lines obtained when the excited electron of a hydrogen atom in drops to the ground state?
1
10
2
5
3
12
4
15
06
PYQ 2010
medium
chemistry ID: jkcet-20
Dual behaviour of matter was proposed by
1
Niels Bohr
2
Erwin Schrodinger
3
Louis de-Broglie
4
Max Planck
07
PYQ 2012
medium
chemistry ID: jkcet-20
Bohr model of hydrogen atom was unable to explain
1
Rydberg's formula of atomic spectra
2
Heisenberg's uncertainty principle
3
Planck's law of energy quantisation
4
Rutherford's model of atomic structure
08
PYQ 2013
medium
chemistry ID: jkcet-20
Which of the following pairs is not correctly matched?
1
Hund's rule In orbitals of equivalent energy electron spins remain unpaired if possible
2
Pauli's exclusion principle No two electrons can have all the four quantum numbers identical
3
Zeeman effect The effect of magnetic field on the atomatic spectra
4
Uncertainty principle It is impossible to determine the position of an electron
09
PYQ 2013
medium
chemistry ID: jkcet-20
What is the total number of electrons that can have the values in the electronic configuration
1
1
2
3
3
5
4
7
10
PYQ 2013
medium
chemistry ID: jkcet-20
Calculate the wavelength associated with an electron moving with a velocity of (mass of
1
2
3
4
None of the above
11
PYQ 2014
medium
chemistry ID: jkcet-20
Negatively charged particles are called
1
electrons
2
protons
3
neutrons
4
None of these
12
PYQ 2014
medium
chemistry ID: jkcet-20
The smallest quantity of energy that can be emitted or absorbed in the form of electromagnetic radiation is known as
1
quantum
2
photon
3
spectrum
4
photoelectron
13
PYQ 2014
medium
chemistry ID: jkcet-20
Energy of one mole of photons of radiation whose frequency is is
1
2
3
4
14
PYQ 2014
medium
chemistry ID: jkcet-20
Atoms with identical atomic number but different atomic mass number are known as
1
polymers
2
isobars
3
isotopes
4
isomers
15
PYQ 2017
medium
chemistry ID: jkcet-20
Let the energy of an orbit of atom be . What will be the longest wavelength of energy required to remove an electron from the third orbit?
1
2
3
4
About Structure Of Atom - JKCET
Structure Of Atom is a vital chapter for JKCET aspirants. Mastering the concepts covered in this chapter is essential for securing a top rank.
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