Particle nature of electron was experimently demonstrated by :
Max Bon
J.J. Thomson
De-Broglie
Shrodinger
The bond order of H2 molecule can be calculated as :
2
4
1
1/2
Einstein's equation is :
λ = h/mv
E = mv
E = mc2
E = h/p
Which type of bonding is formed between the two molecules of same or different compounds ?
Intra molecular hydrogen bonding
Inter molecular hydrogen bonding
A and B
None of these
The charge on an electron was discovered by :
Neil Bohr
James Chadwick
Millikan
It is impossible to determine simultaneously by both the position and velocity of a microscopic particle with absolute accuracy or certainty. This is :
Heisenberg uncertainty principle
de-Broglie's principle
Bohr's principle
Quantum theory
What is the frequency of a light wave whose period is 2.0 x 10-10 s ?
5 x 109 s
4 x 109 s
5 x 109 s-1
4 x 109 s-1
Which of the following transitions have minimum wavelength ?
n4 → n1
n2 → n1
n4 → n2
n3 → n1
______________ is defined as half the difference between the number of electrons in bonding molecular orbitals (Nb) and the number of electrons in antibonding molecular orbitals.
Bond order
Bond length
Bond number
de-Broglie relation has significance for ___________ object.
Submicroscopic
Macro
Large
