Looking for trustworthy answers? Westonci.ca is the ultimate Q&A platform where experts share their knowledge on various topics. Connect with a community of professionals ready to help you find accurate solutions to your questions quickly and efficiently. Join our platform to connect with experts ready to provide precise answers to your questions in different areas.

Which of these bonds is characterized by equal sharing of electrons?

A. H-Cl
B. C-H
C. O-H
D. N-H

Sagot :

To determine which bond is characterized by the equal sharing of electrons, we need to consider the concept of electronegativity. Electronegativity is a measure of how strongly an atom attracts shared electrons in a chemical bond. When two atoms form a bond, the difference in their electronegativities determines the type of bond:

1. A non-polar covalent bond occurs when the electronegativity difference between the two atoms is very small or none, leading to an equal sharing of electrons.

2. A polar covalent bond occurs when there is a moderate difference in electronegativity, resulting in unequal sharing of electrons.

3. An ionic bond occurs when there is a large difference in electronegativity, causing one atom to completely transfer an electron to the other.

Let’s analyze each option:

a) H-Cl (Hydrogen-Chlorine):
- Hydrogen has an electronegativity of approximately 2.1.
- Chlorine has an electronegativity of approximately 3.0.
- The difference between Hydrogen and Chlorine is about 0.9, which is significant. This creates a polar covalent bond with unequal sharing of electrons.

b) C-H (Carbon-Hydrogen):
- Carbon has an electronegativity of approximately 2.5.
- Hydrogen has an electronegativity of approximately 2.1.
- The difference between Carbon and Hydrogen is just 0.4, which is quite small. This leads to a non-polar covalent bond characterized by equal sharing of electrons.

c) O-H (Oxygen-Hydrogen):
- Oxygen has an electronegativity of approximately 3.5.
- Hydrogen has an electronegativity of approximately 2.1.
- The difference between Oxygen and Hydrogen is about 1.4, which is significant. This creates a polar covalent bond with unequal sharing of electrons.

d) N-H (Nitrogen-Hydrogen):
- Nitrogen has an electronegativity of approximately 3.0.
- Hydrogen has an electronegativity of approximately 2.1.
- The difference between Nitrogen and Hydrogen is about 0.9, which is significant. This creates a polar covalent bond with unequal sharing of electrons.

From this analysis, the bond that is characterized by the equal sharing of electrons is the C-H bond. Therefore, the correct answer is:

b) C-H