1.
Which has the maximum number of orbitals?
2.
If n=4, the number of possible electrons =
3.
The ratio of velocities of electrons in n=1 and n=4 hydrogen orbits is
4.
The orbital with highest penetration
5.
The number of radial nodes in 3s =
6.
The correct set of quantum numbers for the last electron of Cl (Z=17) is
7.
Which emits IR radiation?
8.
The radius of second Bohr orbit of hydrogen (r₂) is
9.
Hund’s rule deals with
10.
Which orbital has spherical symmetry?
11.
Which subshell has highest energy?
12.
The nodal plane concept is applicable to
13.
Magnetic quantum number determines ___
14.
The first line of Lyman series corresponds to transition
16.
Energy of an electron varies inversely with ___ in Bohr’s model
17.
Which quantum number determines shape of orbital?
18.
If an electron is in 3d orbital, the number of angular nodes =
19.
The maximum electrons in n=4 shell =
20.
The orbital degeneracy of f-subshell =
21.
The angular momentum of an electron in Bohr’s second orbit is proportional to ___
22.
Which is diamagnetic?
23.
Ionisation energy is lowest for
24.
Photoelectric effect proves ___
25.
Rutherford model fails because it cannot explain ___
26.
Aufbau principle fails for
27.
Bohr model is valid for
28.
The energy of a photon is proportional to
29.
Which describes wave nature of electron?
30.
Principal quantum number determines
31.
Electron affinity increases ___
32.
Wave number is proportional to
33.
The charge/mass ratio of electron was measured by
34.
The number of radial nodes in 4p orbital is ___
35.
Which transition emits visible light?
36.
Which spectral line corresponds to the greatest energy difference?
37.
Which has the smallest wavelength?
38.
Ionisation enthalpy of He is high due to
39.
The ratio of de Broglie wavelengths of electrons in n=1 and n=3 orbits of H-atom is:
40.
Which has maximum effective nuclear charge?
41.
Which has the highest penetration?
42.
The number of allowed m values for d-orbital is
43.
A neutron was discovered by ___
44.
In hydrogen, the wavelength of H-α is
45.
The uncertainty principle is significant for ___
