1.
Which orbital has spherical symmetry?
2.
The first line of Lyman series corresponds to transition
3.
The radius of second Bohr orbit of hydrogen (r₂) is
5.
Which emits IR radiation?
6.
Ionisation energy is lowest for
7.
The ratio of de Broglie wavelengths of electrons in n=1 and n=3 orbits of H-atom is:
8.
The number of radial nodes in 3s =
9.
The maximum electrons in n=4 shell =
10.
The correct set of quantum numbers for the last electron of Cl (Z=17) is
11.
Which is diamagnetic?
12.
Which has the highest penetration?
13.
The uncertainty principle is significant for ___
14.
The energy of a photon is proportional to
15.
Which subshell has highest energy?
16.
Bohr model is valid for
17.
Which has the smallest wavelength?
18.
Which quantum number determines shape of orbital?
19.
The nodal plane concept is applicable to
20.
The number of allowed m values for d-orbital is
21.
Which transition emits visible light?
22.
The orbital with highest penetration
23.
Energy of an electron varies inversely with ___ in Bohr’s model
24.
The orbital degeneracy of f-subshell =
25.
Which describes wave nature of electron?
26.
If n=4, the number of possible electrons =
27.
Rutherford model fails because it cannot explain ___
28.
Photoelectric effect proves ___
29.
Electron affinity increases ___
30.
Which has maximum effective nuclear charge?
31.
Aufbau principle fails for
32.
The charge/mass ratio of electron was measured by
33.
The angular momentum of an electron in Bohr’s second orbit is proportional to ___
34.
Wave number is proportional to
35.
Which has the maximum number of orbitals?
36.
Which spectral line corresponds to the greatest energy difference?
37.
Ionisation enthalpy of He is high due to
38.
Magnetic quantum number determines ___
39.
Hund’s rule deals with
40.
If an electron is in 3d orbital, the number of angular nodes =
41.
Principal quantum number determines
42.
The number of radial nodes in 4p orbital is ___
43.
The ratio of velocities of electrons in n=1 and n=4 hydrogen orbits is
44.
A neutron was discovered by ___
45.
In hydrogen, the wavelength of H-α is
