1.
Which subshell has highest energy?
2.
The maximum electrons in n=4 shell =
3.
Bohr model is valid for
4.
Energy of an electron varies inversely with ___ in Bohr’s model
5.
The first line of Lyman series corresponds to transition
6.
Electron affinity increases ___
7.
Rutherford model fails because it cannot explain ___
8.
Principal quantum number determines
9.
In hydrogen, the wavelength of H-α is
10.
Which emits IR radiation?
11.
Which quantum number determines shape of orbital?
12.
A neutron was discovered by ___
13.
If n=4, the number of possible electrons =
14.
The angular momentum of an electron in Bohr’s second orbit is proportional to ___
15.
Photoelectric effect proves ___
16.
The energy of a photon is proportional to
17.
Which has the highest penetration?
18.
Which has the maximum number of orbitals?
19.
Which has maximum effective nuclear charge?
20.
The orbital degeneracy of f-subshell =
21.
The number of radial nodes in 3s =
22.
The radius of second Bohr orbit of hydrogen (r₂) is
23.
The nodal plane concept is applicable to
24.
The number of allowed m values for d-orbital is
25.
Ionisation enthalpy of He is high due to
27.
The number of radial nodes in 4p orbital is ___
28.
The charge/mass ratio of electron was measured by
29.
The ratio of velocities of electrons in n=1 and n=4 hydrogen orbits is
30.
Which describes wave nature of electron?
31.
Which spectral line corresponds to the greatest energy difference?
32.
The uncertainty principle is significant for ___
33.
The ratio of de Broglie wavelengths of electrons in n=1 and n=3 orbits of H-atom is:
34.
Which transition emits visible light?
35.
Magnetic quantum number determines ___
36.
Hund’s rule deals with
37.
The orbital with highest penetration
38.
If an electron is in 3d orbital, the number of angular nodes =
39.
Aufbau principle fails for
40.
Which is diamagnetic?
41.
The correct set of quantum numbers for the last electron of Cl (Z=17) is
42.
Wave number is proportional to
43.
Which has the smallest wavelength?
44.
Ionisation energy is lowest for
45.
Which orbital has spherical symmetry?
