Atomic Structure
If the electronic structure of oxygen atom is written as 1s2 2s2 2p4 it would violate
Hund’s rule
Paulis exclusion principle
Both Hund’s and Pauli’s principles
None of these
None of these
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Which of the following atom has the shortest atomic radiusA. N
B. F
C. O
D. B
The bond between H–H is
A. stronger than the bond between H–Cl
B. weaker than the bond between H–Cl
C. neither stronger nor weaker than the bond between H–Cl
D. none of these
Which of the following bonds will be formed between alkali metals and halogens
A. ionic
B. covalent bond
C. metallic bond
D. coordinate covalent bond
Protons have
A. negative charges.
B. an attraction for neutrons.
C. no charges.
D. no mass.
Which of the following sentence is incorrect for covalent bond?
A. Strength of covalent bond depends upon overlapping at atomic orbitals.
B. Covalent bond is not directional.
C. There is sharing of electrons between atoms bonded by covalent bond
D. Covalent bond is formed between atoms having less difference in their electronegativity.
Bonds that possess between 5% and 50% ionic character are considered to be
A. Ionic.
B. Pure covalent.
C. Polar covalent.
D. nonpolar covalent.
Number of nodal planes for f-orbital are
A. 3
B. 2
C. 1
D. 0
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