迷迭香酸是从蜂花属植物中提取得到的酸性物质,其结构如图所示。

迷迭香酸是从蜂花属植物中提取得到的酸性物质,其结构如图所示。该物质中含有的官能团有________________________________________________________________________

答案

答案 羧基、酯基、()羟基、碳碳双键

解析 根据图中所示结构,可以看出该物质含有如下官能团:羧基、酯基、()羟基、碳碳双键。

相关题目

 ---- Let’s go to a movie after work, OK?        ---- ______ A. Why not
 ---- Let’s go to a movie after work, OK?        ---- ______ A. Why not?            B.      Not at all.     C. Never mind.          D. What of it?
已知质点以速度v(t)=(m/s)在运动,则该质点从时刻t=0到
已知质点以速度v(t)=(m/s)在运动,则该质点从时刻t=0到时刻t=5(s)时所经过的路程为( ) A.20m  B.22m  C.24m  D.26m
离子符号的意义:3Mg2+  中,“2”表示              
离子符号的意义:3Mg2+  中,“2”表示                     ;“3”表示                       
. The best music teacher in the school has hurt his left foot and cannot ______
. The best music teacher in the school has hurt his left foot and cannot ______ tomorrow’s concert.        A. take part         B. play a part in      C. participate in      
 下列现象中,与原子核内部变化有关的是            
 下列现象中,与原子核内部变化有关的是                             A.粒子散射现象           B.天然放射现象 C.光电效应现
 The sports meet, originally due to be held last Friday, was finally _____ beca
 The sports meet, originally due to be held last Friday, was finally _____ because of the bad weather. A. set up            B. broken down           C. worn out        D.
 The boy told his mother that the bike he ______ last month was stolen.    A
 The boy told his mother that the bike he ______ last month was stolen.    A. had repaired            B. has been repaired  C. has repaired         D. was repaired
假定当A商品的互补品价格上升10%时,A商品需求变动量为20单位
假定当A商品的互补品价格上升10%时,A商品需求变动量为20单位;当A商品的替代品价 格下降10%时,A商品需求变动量为30单位。如果其他条件不变,当A商品的互

最新题目