题目内容
(请给出正确答案)
[单选题]
根据次序规则,3个基团-OH、-CH3、-COOH的优先顺序为()。
A.-OH>-CH3>-COOH
B.-COOH>-OH>-CHs
C.-OH>-COOH>-CH3
D.-COOH>-CH3>-OH
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A.-OH>-CH3>-COOH
B.-COOH>-OH>-CHs
C.-OH>-COOH>-CH3
D.-COOH>-CH3>-OH
A.0.334%
B.33.4%
C. 66.7%
D.50.0%
A.2’-OH和5’–P
B.2’-OH和3’-P
C.3’-OH和2’–P
D.5’-OH和3’-P
A.3
B.4
C.5
D.6