Bond order bond length bond energy and metallic bonding - One Line Questions
1.
What is the bond order of H2? —
1
2.
What is the bond order of Li2 molecule? —
1
3.
What is the bond order of He2 molecule? —
0
4.
What is the bond order of the oxygen molecule (O2)? —
2
5.
What is the bond order of the nitrogen molecule (N2)? —
3
6.
The bond order of CO is: —
3
7.
What is the bond order of NO? —
2.5
8.
What is the bond order of CN- ion? —
3
9.
What is the bond order of O2- (superoxide ion)? —
1.5
10.
What is the bond order of O22- (peroxide ion)? —
1.0
11.
What is the bond order of O2+? —
2.5
12.
What is the bond order of O2+? —
2.5
13.
The bond length of N2 molecule is approximately: —
121 pm
14.
The bond length of O2 molecule is approximately: —
112 pm
15.
What is the bond order of CO+? —
2.5
16.
The bond length of H2 molecule is approximately: —
74 pm
17.
In metallic bonding, the positive metal ions are arranged in: —
A regular lattice
18.
The bond energy is directly proportional to the: —
Bond order
19.
The delocalized electrons in metallic bonding are responsible for: —
Electrical conductivity
20.
The force that holds metal atoms together in a metallic solid is called: —
Metallic bond
21.
The metallic bond is considered a type of: —
Intramolecular force
22.
The concept of a 'sea of electrons' is used to describe: —
Metallic bonding
23.
If the bond order of a molecule increases, its bond energy: —
Increases
24.
The strength of the metallic bond generally increases with: —
Increasing charge density of cations and number of delocalized electrons
25.
Which of the following has the highest bond energy? —
F2
26.
Which of the following has the shortest bond length? —
F2
27.
Metallic bonding is strongest in metals that have: —
Many valence electrons per atom
28.
Bond energy is the energy required to: —
Both (a) and (b)
29.
The metallic bond helps to explain why metals are typically: —
Solids at room temperature (except Mercury)
30.
Which of the following species has the longest bond length? —
F2
31.
Which of the following diatomic species has a bond order of 0.5? —
He2
32.
Which of the following is NOT a characteristic of metallic bonding? —
Brittleness
33.
Which of the following statements about bond order and stability is correct? —
Higher bond order means higher stability.
34.
As the bond order of a bond increases, what happens to the bond length? —
Decreases
35.
As bond order decreases, bond energy generally: —
Decreases
36.
As the number of bonds between two atoms increases, the bond length: —
Decreases
37.
Metallic bonding is a type of: —
Intramolecular force
38.
Which factor is primarily responsible for the strength of a metallic bond? —
Electrostatic attraction between positive metal ions and delocalized electrons
39.
The metallic bond is characterized by the presence of: —
A sea of mobile electrons
40.
Which of the following diatomic molecules has the highest bond order? —
N2
41.
Which of the following has the shortest bond length? —
N2
42.
Which species has the longest bond length among the following? —
N22-
43.
Which diatomic molecule has a bond order of 2? —
O2
44.
Which of the following has the lowest bond energy? —
F2
45.
In a metallic lattice, the metal atoms exist as: —
Cations
46.
Which of the following diatomic molecules has a bond order of 1? —
F2
47.
Which of the following has the highest bond order? —
O2+
48.
In metallic bonding, the valence electrons are: —
Free to move throughout the metallic lattice
49.
In metallic bonding, the cations are held together by: —
Electrostatic attraction to the electron sea
50.
Which statement about bond length and bond energy is correct? —
Shorter bond length implies higher bond energy.