试题与答案

下列实验现象及相关结论均正确的是( ) ABCD实验现象品红褪色最后试管有浅黄色

题型:选择题

题目:

下列实验现象及相关结论均正确的是(  )

 ABCD
实验
现象品红褪色最后试管有浅黄色沉淀最后一滴标准液使酚酞由无色变为红色,且30s内不复原盐桥左端从无色逐渐变为蓝色
结论SO2   
强氧化性有机物中含有溴原子滴定达到终点金属Ⅱ比Ⅰ活泼 
 

答案:

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