Welcome to your Atomic Struscture
1.
The radius of hydrogen atom is 0.53 Å. The radius of Li²⁺ ion is:
2.
Set of isoelectronic species is:
3.
Quantum numbers +½ and –½ represent:
4.
To explain the structure of atom the first use of quantum theory was made by
5.
Correct representation for d-orbital is:
6.
Rutherford’s experiment used:
7.
Millikan’s oil drop method is used to determine
8.
Effective magnetic moment of Sc³⁺ ion is:
9.
Most probable radius (pm) of electron in He⁺ is:
10.
Preparation of ethyl acetoacetate involves?
11.
Chromium is represented by configuration
12.
What is the packet of energy called?
13.
Dual nature of particles was given by:
14.
Atomic number of element is 35. What is the total number of electrons present in all p-orbitals of the ground state atom?
15.
Benzoic acid to benzene: X? Phenol to benzene: Y?
16.
Set of isoelectronic species is:
17.
When potassium metal is exposed to violet light:
18.
Standard for atomic mass is:
19.
Atomic number of element is 35. What is the total number of electrons present in all p-orbitals of the ground state atom?
20.
The values of four quantum numbers of an electron of an element are n = 4, l = 0, m = 0, s = +1/2. The element is:
21.
Outermost configuration of most electronegative element is:
22.
In which orbital is angular momentum of electron zero?
23.
Number of orbitals in L energy level
24.
Which one of the following expressions represents electron probability function D?
25.
Configuration 1s² 2s² 2p⁶ 3s² 3p⁶ 3d¹⁰ represents:
26.
Which gives CO₂ with NaHCO₃: Acetic acid, phenol, n-hexanol?
27.
Which element has least number of electrons in M-shell?
28.
The atomic number of an element is 17. The number of orbitals electron pairs in its valence shell is:
29.
Millikan’s oil drop method is used to determine
30.
Total energy of the electron in first orbit of hydrogen atom is:
31.
Which relates to photons both as waves & particles?
32.
The values of four quantum numbers of an electron of an element are n = 4, l = 0, m = 0, s = +1/2. The element is:
33.
The correct set of quantum numbers is:
34.
Which forms a colourless solution in aqueous medium?
35.
Which of the following is not possible?
36.
The incorrect configuration is
37.
Configuration 1s² 2s² 2p⁶ 3s² 3p⁶ 3d⁵ 4s¹ represents:
38.
Wavelength of spectral line emitted is inversely proportional to
39.
An element has 2 electrons in K-shell, 8 in L-shell, 13 in M-shell and 1 electron in N-shell. The element is:
40.
Ratio of radii of second and first Bohr orbits of H-atom
41.
Which of the following pairs are both ions coloured in aqueous solution?
42.
To explain the structure of atom the first use of quantum theory was made by
43.
Angular momentum of electron in Bohr orbit:
44.
Dual nature of particles was given by:
45.
Quantum numbers of an atom can be defined on basis of:
