In the H3O+ ion, the bond between H+ and H2O is a:
ACoordinate bond (both e⁻ from oxygen)
BIonic bond (electron transfer)
CHydrogen bond (between molecules)
DVan der Waals force (weak attraction)
Answer & Solution
Correct answer: A. Coordinate bond (both e⁻ from oxygen)
H3O+ forms when H+ (no electrons) accepts a lone pair from O of H2O. Both shared electrons come from oxygen = COORDINATE bond. NH4+ forms similarly from NH3 + H+.
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