一、考查氧化还原反应基本概念的判别例1下列说法正确的是()。A.还原剂在反应中被还原B.失去电子越多的还原剂,还原性越强C.氧化还原反应中,某元素由游离态变为化合态,此元素可能被还原也可能被氧化D.氧化汞加强热的分解反应中,氧化汞既不是氧化剂又不是还原剂解析:在氧化还原反应中,还原剂被氧化,发生氧化反应;氧化剂被还原,发生还原反应。还原性强弱与失电子能力有关,而与失电子多 First, examine the basic concept of redox reaction discrimination Example 1 The following is correct (). A. The reducing agent is reduced in the reaction B. The more the loss of electrons, the more reducing agent, the more reductive C. Redox reaction, an element from the free state into the compound, the element may be reduced may also be oxidized D. Mercury oxide to strengthen the thermal decomposition reaction, the mercury oxide is neither an oxidant nor a reductant analysis: in the redox reaction, the reductant is oxidized, the oxidation reaction; oxidant is reduced, the reduction reaction. Reducing the strength and loss of electronic capacity, and lost more electrons