A co-ordinate covalent bond is present in:
Correct answer: C. Hydronium ion
- A. Nitride ion
- B. Chloronium ion
- C. Hydronium ion
- D. All of these
Explanation
The hydronium ion (H₃O⁺) is formed when a water molecule (H₂O) uses one of its lone pairs of electrons to form a bond with a hydrogen ion (H⁺), which has an empty orbital. This type of bond, where one species provides both electrons, is a coordinate covalent bond.
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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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