In which of the following central atom cannot form coordinate covalent bond:
Correct answer: C. HF2-
- A. H3O+
- B. BF4-
- C. HF2-
- D. NH4+
Explanation
A coordinate bond (also called a dative covalent bond) is a covalent bond (a shared pair of electrons) in which both electrons come from the same atom. A covalent bond is formed by two atoms sharing a pair of electrons. The atoms are held together because the electron pair is attracted by both of the nuclei. There is no coordinate bonding but very strong hydrogen bonding due to high electronegativity of Flourine.
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