The maximum number of bonds an oxygen atom can normally form is:
A1
B2
C3
D4
Answer & Solution
Correct answer: B. 2
1. Oxygen's valence configuration is 2s² 2p⁴ — needs 2 more electrons to complete the octet.
2. So it normally forms 2 covalent bonds (e.g. H₂O, OF₂).
3. In coordinate (dative) compounds like H₃O⁺ it can form 3, but that's an exception with formal positive charge.
_Source: syllabus Chem Ch 4 §4.2 Octet Rule_
Keep practising Chemical Thermodynamics
Browse all Chemical Thermodynamics questions for AP Intermediate 1st Year, or explore more Chemistry topics.
Related questions
A process whose enthalpy and entropy changes share the same arithmetic sign will show:At minus 10.00 degrees Celsius the entropy change of the universe for melting is negative,Melting is described as spontaneous at 10.00 degrees Celsius because at that temperature:K_sp of a sparingly soluble salt AB at 25 °C is 4 × 10⁻¹⁰. Molar solubility s of AB is:A buffer solution is most resistant to pH change when:K_w (ionic product of water at 25 °C) is:The pH of a 0.01 M HCl solution is:For an exothermic reaction at equilibrium, raising the temperature: