Chemistry - GOC Question with Solution | TestHub
In which of the following pairs of compounds, will second structure have more contribution to resonance hybrid than first?
Options:(select one or more)
Answer:
Solution:
Question Explanation: Comparing stability of resonating structures based on octet completion.
Concept: Rules for Stability of Resonating Structures
Solution:
Second structure has more covalent bonds and all octets are complete.
Pair 2: Second structure has all octets complete; boron and nitrogen both reach eight electrons.
Pair 3: Second structure has a complete octet on carbon due to back-bonding from fluorine.
Pair 4: First structure is more stable as it has more covalent bonds than the second.
In compounds 1, 2, and 3 , the second resonating structure is more stable, therefore it contributes more to the resonance hybrid than the first structure.