Which of the following is NOT an example of covalent bonding?

Question

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NaF
H₂O
NH₃
O₂
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Answer 1

The compound that is NOT an example of covalent bonding is NaF (sodium fluoride).

NaF is an ionic compound, formed when sodium (Na) donates an electron to fluorine (F), creating ions that attract each other due to opposite charges.

The other compounds listed (H₂O, NH₃, and O₂) are formed through covalent bonding, where atoms share electrons.