Which of the following compound has a directional bond?
Correct answer: C. Hydrogen sulphide
- A. Magnesium chloride
- B. Solid neon
- C. Hydrogen sulphide
- D. Caesium fluoride
Explanation
A directional bond, like the hydrogen sulfide (H2S) molecule, occurs when the electron pairs involved in the bond are localized in specific regions. In H2S, the sulfur atom forms a covalent bond with two hydrogen atoms. The lone pairs of electrons on sulfur create electron regions that are primarily localized around the sulfur atom, resulting in a bent molecular geometry with a bond angle of approximately 92 degrees. This directionality in the electron distribution gives rise to the molecule's unique shape and properties.
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About Chemical Bonding
Chemical bonding explains molecular shape through VSEPR theory and distinguishes sigma bonds from pi bonds. Questions involve hybridization, bond angles, dipole moment and bond energy, including how electron-pair repulsion determines geometry and how bond polarity differs from the overall polarity of a molecule.
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