An inversion of the polar formula accompanies which reaction of degeneration?

• A. Accompanies full reaction of degeneration
• B. Accompanies partial reaction of degeneration
• C. Accompanies absolute reaction of degeneration
• D. Reaction of degeneration is not involved

Answer: (A)

The key idea is that the inversion of the polar formula signals a complete change in the system's polarity that accompanies a full degeneration reaction. When degeneration runs to completion, the charges or polar relationships fully flip, reflecting the final state of the process. If the degeneration is only partial, you wouldn’t see a complete inversion—there would be a mix of polar states and the polarity would only shift partially. The other options imply either no involvement or only a partial or nonstandard form of reaction, which doesn’t align with the indicator behavior of a full degeneration process. So the inversion aligns with the full progression to the degenerated state.