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助色团可产生的电子跃迁类型有( )。

单选题
2021-09-02 17:18
A、-π*
B、-π*
C、-σ*
D、-σ*
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正确答案
C

试题解析

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助色团可产生的电子跃迁类型有( )。
助色团对吸收带的影响是
丙酮分子中存在的电子跃迁类型有
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