1.
Hund’s rule deals with
2.
The orbital with highest penetration
3.
Which emits IR radiation?
4.
Which spectral line corresponds to the greatest energy difference?
5.
The correct set of quantum numbers for the last electron of Cl (Z=17) is
6.
The radius of second Bohr orbit of hydrogen (r₂) is
7.
The energy of a photon is proportional to
8.
Bohr model is valid for
10.
If n=4, the number of possible electrons =
11.
In hydrogen, the wavelength of H-α is
12.
A neutron was discovered by ___
13.
Which has the highest penetration?
14.
Rutherford model fails because it cannot explain ___
15.
Which transition emits visible light?
16.
Aufbau principle fails for
17.
Which has the maximum number of orbitals?
18.
Ionisation enthalpy of He is high due to
19.
The charge/mass ratio of electron was measured by
20.
If an electron is in 3d orbital, the number of angular nodes =
21.
The uncertainty principle is significant for ___
22.
The first line of Lyman series corresponds to transition
23.
The number of radial nodes in 4p orbital is ___
24.
The angular momentum of an electron in Bohr’s second orbit is proportional to ___
25.
Which has maximum effective nuclear charge?
26.
Principal quantum number determines
27.
Energy of an electron varies inversely with ___ in Bohr’s model
28.
The ratio of velocities of electrons in n=1 and n=4 hydrogen orbits is
29.
The orbital degeneracy of f-subshell =
30.
Photoelectric effect proves ___
31.
The ratio of de Broglie wavelengths of electrons in n=1 and n=3 orbits of H-atom is:
32.
The number of radial nodes in 3s =
33.
Which orbital has spherical symmetry?
34.
Which subshell has highest energy?
35.
Wave number is proportional to
36.
Which quantum number determines shape of orbital?
37.
Which is diamagnetic?
38.
Ionisation energy is lowest for
39.
The nodal plane concept is applicable to
40.
Magnetic quantum number determines ___
41.
Which describes wave nature of electron?
42.
The number of allowed m values for d-orbital is
43.
Which has the smallest wavelength?
44.
Electron affinity increases ___
45.
The maximum electrons in n=4 shell =
