What type of bond(s) is/are present in a hydronium ion?

[1 mark]

Covalent and coordinate bond

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Only covalent bond

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Only ionic bond

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Covalent and ionic bond

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Solution

The correct option is A Covalent and coordinate bond
A water molecule consists of two hydrogen atoms and one oxygen atom combined through covalent bonds. The oxygen atom has two lone pairs of electrons and donates its one lone pair of electrons to the $H^{+}$ ion to form a coordinate bond. As a result, a hydronium ion is formed.

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