Topic content:
The correct one in the following statements is ()
A. Compounds containing the highest valence elements must have strong oxidation
B. Cations are only oxidizing, anions are only reducing
C. The more electrons are lost, the stronger the reducibility is
D. In the redox reaction, the chemical valence of all elements may not change
Best answer:
D
Answer analysis:
There is no explanation for this question
Test core:
Essence of redox reaction: electron transfer (gain or loss or deviation) Characteristics of redox reaction: valence rise and fall (valence of some elements changes before and after reaction, which is the basis for judging redox reaction)